Why You Probably Need More Sleep

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The 10almonds Team

Sleep: yes, you really do still need it!

We asked you how much sleep you usually get, and got the above-pictured, below-described set of responses:

  • A little of a third of all respondents selected the option “< 7 hours”
  • However, because respondents also selected options such as < 6 hours, < 5 hours, and < 4 hours, so if we include those in the tally, the actual total percentage of respondents who reported getting under 7 hours, is actually more like 62%, or just under two thirds of all respondents.
  • Nine respondents, which was about 5% of the total, reported usually getting under 4 hours sleep
  • A little over quarter of respondents reported usually getting between 7 and 8 hours sleep
  • Fifteen respondents, which was a little under 10% of the total, reported usually getting between 8 and 9 hours of sleep
  • Three respondents, which was a little under 2% of the total, reported getting over 9 hours of sleep
  • In terms of the classic “you should get 7–9 hours sleep”, approximately a third of respondents reported getting this amount.

You need to get 7–9 hours sleep: True or False?

True! Unless you have a (rare!) mutated ADRB1 gene, which reduces that.

The way to know whether you have this, without genomic testing to know for sure, is: do you regularly get under 6.5 hours sleep, and yet continue to go through life bright-eyed and bushy-tailed? If so, you probably have that gene. If you experience daytime fatigue, brain fog, and restlessness, you probably don’t.

About that mutated ADRB1 gene:

NIH | Gene identified in people who need little sleep

Quality of sleep matters as much as duration, and a lot of studies use the “RU-Sated” framework, which assesses six key dimensions of sleep that have been consistently associated with better health outcomes. These are:

  • regularity / usual hours
  • satisfaction with sleep
  • alertness during waking hours
  • timing of sleep
  • efficiency of sleep
  • duration of sleep

But, that doesn’t mean that you can skimp on the last one if the others are in order. In fact, getting a good 7 hours sleep can reduce your risk of getting a cold by three or four times (compared with six or fewer hours):

Behaviorally Assessed Sleep and Susceptibility to the Common Cold

^This study was about the common cold, but you may be aware there are more serious respiratory viruses freely available, and you don’t want those, either.

Napping is good for the health: True or False?

True or False, depending on how you’re doing it!

If you’re trying to do it to sleep less in total (per polyphasic sleep scheduling), then no, this will not work in any sustainable fashion and will be ruinous to the health. We did a Mythbusting Friday special on specifically this, a while back:

Could Just Two Hours Sleep Per Day Be Enough?

PS: you might remember Betteridge’s Law of Headlines

If you’re doing it as a energy-boosting supplement to a reasonable night’s sleep, napping can indeed be beneficial to the health, and can give benefits such as:

However! There is still a right and a wrong way to go about it, and we wrote about this previously, for a Saturday Life Hacks edition of 10almonds:

How To Nap Like A Pro (No More “Sleep Hangovers”!)

As we get older, we need less sleep: True or False

False, with one small caveat.

The small caveat: children and adolescents need 9–12 hours sleep because, uncredited as it goes, they are doing some seriously impressive bodybuilding, and that is exhausting to the body. So, an adult (with a normal lifestyle, who is not a bodybuilder) will tend to need less sleep than a child/adolescent.

But, the statement “As we get older, we need less sleep” is generally taken to mean “People in the 65+ age bracket need less sleep than younger adults”, and this popular myth is based on anecdotal observational evidence: older people tend to sleep less (as our survey above shows! For any who aren’t aware, our readership is heavily weighted towards the 60+ demographic), and still continue functioning, after all.

Just because we survive something with a degree of resilience doesn’t mean it’s good for us.

In fact, there can be serious health risks from not getting enough sleep in later years, for example:

Sleep deficiency promotes Alzheimer’s disease development and progression

Want to get better sleep?

What gets measured, gets done. Sleep tracking apps can be a really good tool for getting one’s sleep on a healthier track. We compared and contrasted some popular ones:

The Head-To-Head Of Google and Apple’s Top Apps For Getting Your Head Down

Take good care of yourself!

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  • The End of Food Allergy – by Dr. Kari Nadeau & Sloan Barnett

    The 10almonds Team

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We don’t usually mention author credentials beyond their occupation/title. However, in this case it bears acknowledging at least the first line of the author bio:

    ❝Kari Nadeau, MD, PhD, is the director of the Sean N. Parker Center for Allergy and Asthma Research at Stanford University and is one of the world’s leading experts on food allergy❞

    We mention this, because there’s a lot of quack medicine out there [in general, but especially] when it comes to things such as food allergies. So let’s be clear up front that Dr. Nadeau is actually a world-class professional at the top of her field.

    This book is, by the way, about true allergies—not intolerances or sensitivities. It does touch on those latter two, but it’s not the main meat of the book.

    In particular, most of the research cited is around peanut allergies, though the usual other common allergens are all discussed too.

    The authors’ writing style is that of a science educator (Dr. Nadeau’s co-author, Sloan Barnett, is lawyer and health journalist). We get a clear explanation of the science from real-world to clinic and back again, and are left with a strong understanding, not just a conclusion.

    The titular “End of Food Allergy” is a bold implicit claim; does the book deliver? Yes, actually.

    The book lays out guidelines for safely avoiding food allergies developing in infants, and yes, really, how to reverse them in adults. But…

    Big caveat:

    The solution for reversing severe food allergies (e.g. “someone nearby touched a peanut three hours ago and now I’m in anaphylactic shock”), drug-assisted oral immunotherapy, takes 6–24 months of weekly several-hour-long clinic visits, relies on having a nearby clinic offering the service, and absolutely 100% cannot be done at home (on pain of probable death).

    Bottom line: it’s by no means a magic bullet, but yes, it does deliver.

    Click here to check out The End of Food Allergy to learn more!

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  • Do Hard Things – by Steve Magness

    The 10almonds Team

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    It’s easy to say that we must push ourselves if we want to achieve worthwhile things—and it’s also easy to push ourselves into an early grave by overreaching. So, how to do the former, without doing the latter?

    That’s what this book’s about. The author, speaking from a background in the science of sports psychology, applies his accumulated knowledge and understanding to the more general problems of life.

    Most of us are, after all, not sportspeople or if we are, not serious ones. Those few who are, will get benefit from this book too! But it’s mostly aimed at the rest of us who are trying to work out whether/when we should scale up, scale back, change track, or double down:

    • How much can we really achieve in our career?
    • How about in retirement?
    • Do we ever really get too old for athletic feats, or should we keep pressing on?

    Magness brings philosophy and psychological science together, to help us sort our way through.

    Nor is this just a pep talk—there’s readily applicable, practical, real-world advice here, things to enable us to do our (real!) best without getting overwhelmed.

    The style is pop-science, very easy-reading, and clear and comprehensible throughout—without succumbing to undue padding either.

    Bottom line: this is a very pleasant read, that promises to make life more meaningful and manageable at the same time. Highly recommendable!

    Click here to check out Do Hard Things, and get the most out of life!

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  • Driving under the influence of marijuana: An explainer and research roundup

    Naseem S. Miller – The Journalist's Resource

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Update 1: On May 16, 2024, the U.S. Department of Justice sent a proposed rule to the Federal Register to downgrade marijuana from a Schedule I to a Schedule III drug. This is the first step in a lengthy approval process that starts with a 60-day comment period.

    Update 2: Two recent research studies were added to the “Studies on marijuana and driving” section of this piece on July 18, 2024.

    As marijuana use continues to rise and state-level marijuana legalization sweeps the U.S., researchers and policymakers are grappling with a growing public safety concern: marijuana-impaired driving.

    As of April 2023, 38 U.S. states had legalized medical marijuana and 23 had legalized its recreational use, according to the National Conference of State Legislatures. Recreational or medical marijuana measures are on the ballot in seven states this year.

    The issue of marijuana-impaired driving has not been an easy one to tackle because, unlike alcohol, which has well-established thresholds of impairment, the metrics for marijuana’s effects on driving remain rather elusive.

    “We don’t have that kind of deep knowledge right now and it’s not because of lack of trying,” says Dr. Guohua Li, professor of epidemiology and the founding director of the Center for Injury Science and Prevention at Columbia University.

    “Marijuana is very different from alcohol in important ways,” says Li, who has published several studies on marijuana and driving. “And one of them is that the effect of marijuana on cognitive functions and behaviors is much more unpredictable than alcohol. In general, alcohol is a depressant drug. But marijuana could act on the central nervous system as a depressant, a stimulant, and a hallucinogenic substance.”

    Efforts to create a breathalyzer to measure the level of THC, the main psychoactive compound found in the marijuana plant, have largely failed, because “the THC molecule is much bigger than ethanol and its behavior after ingestion is very different from alcohol,” Li says.

    Currently, the two most common methods used to measure THC concentration to identify impaired drivers are blood and saliva tests, although there’s ongoing debate about their reliability.

    Marijuana, a term interchangeably used with cannabis, is the most commonly used federally illegal drug in the U.S.: 48.2 million people, or about 18% of Americans reported using it at least once in 2019, according to the latest available data from the Centers for Disease Control and Prevention. Worldwide, 2.5% of the population consumes marijuana, according to the World Health Organization.

    Marijuana is legal in several countries, including Canada, where it was legalized in 2018. Despite state laws legalizing cannabis, it remains illegal at the federal level in the U.S.

    As states grapple with the contentious issue of marijuana legalization, the debate is not just about public health, potential tax revenues and economic interests. At the heart of the discussion is also the U.S. criminal justice system.

    Marijuana is shown to have medicinal qualities and, compared with substances like alcohol, tobacco, and opioids, it has relatively milder health risks. However, it’s not risk-free, a large body of research has shown.

    Marijuana consumption can lead to immediate effects such as impaired muscle coordination and paranoia, as well as longer-term effects on mental health and cognitive functions — and addiction. As its use becomes more widespread, researchers are trying to better understand the potential hazards of marijuana, particularly for younger users whose brains are in critical stages of development.

    Marijuana and driving

    The use of marijuana among drivers, passengers and pedestrians has increased steadily over the past two decades, Li says.

    Compared with the year 2000, the proportion of U.S. drivers on the road who are under the influence of marijuana has increased by several folds, between five to 10 times, based on toxicology testing of people who died in car crashes, Li says.

    A 2022 report from the National Transportation Safety Board finds alcohol and cannabis are the two most commonly detected drugs among drivers arrested for impaired driving and fatally injured drivers. Most drivers who tested positive for cannabis also tested positive for another potentially impairing drug.

    “Although cannabis and many other drugs have been shown to impair driving performance and are associated with increased crash risk, there is evidence that, relative to alcohol, awareness about the potential dangers of driving after using other drugs is lower,” according to the report.

    Indeed, many U.S. adults perceive daily marijuana use or exposure to its smoke safer than tobacco, even though research finds otherwise.

    Several studies have demonstrated marijuana’s impact on driving.

    Marijuana use can reduce the drivers’ ability to pay attention, particularly when they are performing multiple tasks, research finds. It also slows reaction time and can impair coordination.

    “The combination is that you potentially have people who are noticing hazards later, braking slower and potentially not even noticing hazards because of their inability to focus on competing things on the road,” says Dr. Daniel Myran, an assistant professor at the Department of Family Medicine and health services researcher at the University of Ottawa.

    In a study published in September in JAMA Network Open, Myran and colleagues find that from 2010 to 2021 the rate of cannabis-involved traffic injuries that led to emergency department visits in Ontario, Canada, increased by 475%, from 0.18 per 1,000 traffic injury emergency department visits in 2010 to 1.01 visits in 2021.

    To be sure, cannabis-involved traffic injuries made up a small fraction of all traffic injury-related visits to hospital emergency departments. Out of 947,604 traffic injury emergency department visits, 426 had documented cannabis involvement.

    Myran cautions the increase shouldn’t be solely attributed to marijuana legalization. It captures changing societal attitudes toward marijuana and acceptance of cannabis use over time in the lead-up to legalization. In addition, it may reflect an increasing awareness among health care providers about cannabis-impaired driving, and they may be more likely to ask about cannabis use and document it in medical charts, he says.

    “When you look at the 475% increase in cannabis involvement in traffic injuries, rather than saying legalizing cannabis has caused the roads to be unsafe and is a public health disaster, it’s that cannabis use appears to be growing as a risk for road traffic injuries and that there seem to be more cannabis impaired drivers on the road,” Myran says. “Legalization may have accelerated this trend. Faced with this increase, we need to think about what are public health measures and different policy interventions to reduce harms from cannabis-impaired driving.”

    Setting a legal limit for marijuana-impaired driving

    Setting a legal limit for marijuana-impaired driving has not been easy. Countries like Canada and some U.S. states have agreed upon a certain level of THC in blood, usually between 1 to 5 nanograms per milliliter. Still, some studies have found those limits to be weak indicators of cannabis-impaired driving.

    When Canada legalized recreational marijuana in 2018, it also passed a law that made it illegal to drive with blood THC levels of more than 2 nanograms. The penalties are more severe for blood THC levels above 5 nanograms. The blood test is done at the police station for people who are pulled over and are deemed to be drug impaired.

    In the U.S., five states — Ohio, Illinois, Montana, Washington and Nevada — have “per se laws,” which set a specific amount of THC in the driver’s blood as evidence of impaired driving, according to the National Conference of State Legislatures. That limit ranges between 2 and 5 nanograms of THC per milliliter of blood.

    Colorado, meanwhile, has a “permissible inference law,” which states that it’s permissible to assume the driver was under the influence if their blood THC level is 5 nanograms per milliliter or higher, according to NCSL.

    Twelve states, most which have legalized some form of marijuana of use, have zero tolerance laws for any amount of certain drugs, including THC, in the body.

    The remaining states have “driving under the influence of drugs” laws. Among those states, Alabama and Michigan, have oral fluid roadside testing program to screen drivers for marijuana and other drugs, according to NCSL.

    In May this year, the U.S. Department of Transportation published a final rule that allows employers to use saliva testing for commercially licensed drivers, including truck drivers. The rule, which went into effect in June, sets the THC limit in saliva at 4 nanograms.

    Saliva tests can detect THC for 8 to 24 hours after use, but the tests are not perfect and can results in false positives, leading some scientists to argue against using them in randomly-selected drivers.

    In a 2021 report, the U.S. National Institute of Justice, the research and development arm of the Department of Justice, concluded that THC levels in bodily fluids, including blood and saliva “were not reliable indicators of marijuana intoxication.”

    Studies on marijuana and driving

    Over the past two decades, many studies have shown marijuana use can impair driving. However, discussions about what’s the best way to measure the level of THC in blood or saliva are ongoing. Below, we highlight and summarize several recent studies that address the issue. The studies are listed in order of publication date. We also include a list of related studies and resources to inform your audiences.

    State Driving Under the Influence of Drugs Laws
    Alexandra N. Origenes, Sarah A. White, Emma E. McGinty and Jon S. Vernick. Journal of Law, Medicine & Ethics, July 2024.

    Summary: As of January 2023, 33 states and D.C. had a driving under the influence of drugs law for at least one drug other than cannabis. Of those, 29 states and D.C. had a law specifically for driving under the influence of cannabis, in addition to a law for driving under the influence of other drugs. Four states had a driving under the influence of drug laws, excluding cannabis. Meanwhile, 17 states had no law for driving under the influence of drugs, including cannabis.  “The 17 states lacking a DUID law that names specific drugs should consider enacting such a law. These states already have expressed their concern — through legislation — with drug-impaired driving. However, failure to name specific drugs is likely to make the laws more difficult to enforce. These laws may force courts and/or law enforcement to rely on potentially subjective indicators of impairment,” the authors write.

    Associations between Adolescent Marijuana Use, Driving After Marijuana Use and Recreational Retail Sale in Colorado, USA
    Lucas M. Neuroth, et al. Substance Use & Misuse, October 2023.

    Summary: Researchers use data from four waves (2013, 2015, 2017 and 2019) of the Healthy Kids Colorado Survey, including 47,518 students 15 and older who indicated that they drove. They find 20.3% of students said that they had used marijuana in the past month and 10.5% said they had driven under the influence of marijuana. They find that the availability of recreational marijuana in stores was associated with an increased prevalence of using marijuana one to two times in the past month and driving under the influence of marijuana at least once. “Over the study period, one in ten high school age drivers engaged in [driving after marijuana use], which is concerning given the high risk of motor vehicle-related injury and death arising from impaired driving among adolescents,” the authors write.

    Are Blood and Oral Fluid Δ9-tetrahydrocannabinol (THC) and Metabolite Concentrations Related to Impairment? A Meta-Regression Analysis
    Danielle McCartney, et al. Neuroscience & Biobehavioral Reviews, March 2022.

    Summary: Commonly used THC measurements may not be strong indicators of driving impairment. While there is a relationship between certain biomarkers like blood THC concentrations and impaired driving, this correlation is often weak. The study underscores the need for more nuanced and comprehensive research on this topic, especially as cannabis usage becomes more widespread and legally accepted.

    The Effects of Cannabis and Alcohol on Driving Performance and Driver Behaviour: A Systematic Review and Meta-Analysis
    Sarah M. Simmons, Jeff K. Caird, Frances Sterzer and Mark Asbridge. Addiction, January 2022.

    Summary: This meta-analysis of experimental driving studies, including driving simulations, confirms that cannabis impairs driving performance, contrary to some beliefs that it might enhance driving abilities. Cannabis affects lateral control and speed — typically increasing lane excursions while reducing speed. The combination of alcohol and marijuana appears worse than either alone, challenging the idea that they cancel each other out.

    Cannabis Legalization and Detection of Tetrahydrocannabinol in Injured Drivers
    Jeffrey R. Brubacher, et al. The New England Journal of Medicine, January 2022.

    Summary: Following the legalization of recreational marijuana in Canada, there was a notable increase in injured drivers testing positive for THC, especially among those 50 years of age or older. This rise in cannabis-related driving incidents occurred even with new traffic laws aiming to deter cannabis-impaired driving. This uptick began before legalization became official, possibly due to perceptions that cannabis use was soon-to-be legal or illegal but not enforced. The data suggests that while legalization has broad societal impacts, more comprehensive strategies are needed to deter driving under the influence of cannabis and raise public awareness about its risks.

    Cannabis and Driving
    Godfrey D. Pearlson, Michael C. Stevens and Deepak Cyril D’Souza. Frontiers in Psychiatry, September 2021.

    Summary: Cannabis-impaired driving is a growing public health concern, and studies show that such drivers are more likely to be involved in car crashes, according to this review paper. Drivers are less affected by cannabis than they are by alcohol or cocaine, but the problem is expected to escalate with increasing cannabis legalization and use. Unlike alcohol, THC’s properties make it challenging to determine direct impairment levels from testing results. Current roadside tests lack precision in detecting genuine cannabis-impaired drivers, leading to potential wrongful convictions. Moreover, there is a pressing need for research on the combined effects of alcohol and cannabis on driving, as well as the impact of emerging popular forms of cannabis, like concentrates and edibles. The authors recommend public awareness campaigns about the dangers of driving under the influence of cannabis, similar to those against drunk driving, to address misconceptions. Policymakers should prioritize science-based decisions and encourage further research in this domain.

    Demographic And Policy-Based Differences in Behaviors And Attitudes Towards Driving After Marijuana Use: An Analysis of the 2013–2017 Traffic Safety Culture Index
    Marco H. Benedetti, et al. BMC Research Notes, June 2021.

    Summary: The study, based on a U.S. survey, finds younger, low-income, low-education and male participants were more tolerant of driving after marijuana consumption. Notably, those in states that legalized medical marijuana reported driving after use more frequently, aligning with studies indicating a higher prevalence of THC detection in drivers from these states. Overall, while the majority perceive driving after marijuana use as dangerous, not all research agrees on its impairment effects. Existing studies highlight that marijuana impacts motor skills and executive functions, yet its direct correlation with crash risk remains debated, given the variations in individual tolerance and how long THC remains in the system.

    Driving Under the Influence of Cannabis: A Framework for Future Policy
    Robert M. Chow, et al.Anesthesia & Analgesia, June 2019.

    Summary: The study presents a conceptual framework focusing on four main domains: legalization, driving under the influence of cannabis, driver impairment, and motor vehicle accidents. With the growing legalization of cannabis, there’s an anticipated rise in cannabis-impaired driving cases. The authors group marijuana users into infrequent users who show significant impairment with increased THC blood levels, chronic users with minimal impairment despite high THC levels, and those with consistent psychomotor deficits. Current challenges lie in the lack of standardized regulation for drivers influenced by cannabis, primarily because of state-to-state variability and the absence of a federal statutory limit for blood THC levels. European nations, however, have established thresholds for blood THC levels, ranging from 0.5 to 50.0 micrograms per liter depending on whether blood or blood serum are tested. The authors suggest the combined use of alcohol and THC blood tests with a psychomotor evaluation by a trained professional to determine impairment levels. The paper stresses the importance of creating a structured policy framework, given the rising acceptance and use of marijuana in society.

    Additional research

    Cannabis-Involved Traffic Injury Emergency Department Visits After Cannabis Legalization and Commercialization
    Daniel T. Myran, et al. JAMA Network Open, September 2023.

    Driving Performance and Cannabis Users’ Perception of Safety: A Randomized Clinical Trial
    Thomas D. Marcotte, et al. JAMA Psychiatry, January 2022.

    Medicinal Cannabis and Driving: The Intersection of Health and Road Safety Policy
    Daniel Perkins, et al. International Journal of Drug Policy, November 2021.

    Prevalence of Marijuana Use Among Trauma Patients Before and After Legalization of Medical Marijuana: The Arizona Experience
    Michael Levine, et al. Substance Abuse, July 2021.

    Self-Reported Driving After Marijuana Use in Association With Medical And Recreational Marijuana Policies
    Marco H. Benedetti, et al. International Journal of Drug Policy, June 2021.

    Cannabis and Driving Ability
    Eric L. Sevigny. Current Opinion in Psychology, April 2021.

    The Failings of per se Limits to Detect Cannabis-Induced Driving Impairment: Results from a Simulated Driving Study
    Thomas R. Arkell, et al. Traffic Injury Prevention, February 2021.

    Risky Driving Behaviors of Drivers Who Use Alcohol and Cannabis
    Tara Kelley-Baker, et al. Transportation Research Record, January 2021.

    Direct and Indirect Effects of Marijuana Use on the Risk of Fatal 2-Vehicle Crash Initiation
    Stanford Chihuri and Guohua Li. Injury Epidemiology, September 2020

    Cannabis-Impaired Driving: Evidence and the Role of Toxicology Testing
    Edward C. Wood and Robert L. Dupont. Cannabis in Medicine, July 2020.

    Association of Recreational Cannabis Laws in Colorado and Washington State With Changes in Traffic Fatalities, 2005-2017
    Julian Santaella-Tenorio, et al. JAMA Internal Medicine, June 2020.

    Marijuana Decriminalization, Medical Marijuana Laws, and Fatal Traffic Crashes in US Cities, 2010–2017
    Amanda Cook, Gregory Leung and Rhet A. Smith. American Journal of Public Health, February 2020.

    Cannabis Use in Older Drivers in Colorado: The LongROAD Study
    Carolyn G. DiGuiseppi, et al. Accident Analysis & Prevention, November 2019.

    Crash Fatality Rates After Recreational Marijuana Legalization in Washington and Colorado
    Jayson D. Aydelotte, et al. American Journal of Public Health, August 2017.

    Marijuana-Impaired Driving: A Report to Congress
    National Highway Traffic Safety Administration, July 2017

    Interaction of Marijuana And Alcohol on Fatal Motor Vehicle Crash Risk: A Case–Control Study
    Stanford Chihuri, Guohua Li and Qixuan Chen. Injury Epidemiology, March 2017.

    US Traffic Fatalities, 1985–2014, and Their Relationship to Medical Marijuana Laws
    Julian Santaella-Tenorio, et al. American Journal of Public Health, February 2017.

    Delays in DUI Blood Testing: Impact on Cannabis DUI Assessments
    Ed Wood, Ashley Brooks-Russell and Phillip Drum. Traffic Injury Prevention, June 2015.

    Establishing Legal Limits for Driving Under the Influence of Marijuana
    Kristin Wong, Joanne E. Brady and Guohua Li. Injury Epidemiology, October 2014.

    Cannabis Effects on Driving Skills
    Rebecca L. Hartman and Marilyn A. Huestis. Clinical Chemistry, March 2014.

    Acute Cannabis Consumption And Motor Vehicle Collision Risk: Systematic Review of Observational Studies and Meta-Analysis
    Mark Asbridge, Jill A. Hayden and Jennifer L. Cartwright. The BMJ, February 2012.

    Resources for your audiences

    The following resources include explainers from federal agencies and national organizations. You’re free to use images and graphics from federal agencies.

    This article first appeared on The Journalist’s Resource and is republished here under a Creative Commons license.

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  • Super Joints – by Pavel Tsatsouline

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    The 10almonds Team

    For those of us for whom mobility and pain-free movement are top priorities, this book has us covered. So what’s different here, compared to your average stretching book?

    It’s about functional strength with the stretches. The author’s background as a special forces soldier means that his interest was not in doing arcane yoga positions so much as being able to change direction quickly without losing speed or balance, get thrown down and get back up without injury, twist suddenly without unpleasantly wrenching anything (of one’s own, at least), and generally be able to take knocks without taking damage.

    While we are hopefully not having to deal with such violence in our everyday lives, the robustness of body that results from these exercises is one that certainly can go a long way to keep us injury-free.

    The exercises themselves are well-described, clearly and succinctly, with equally clear illustrations.

    Note: the paperback version is currently expensive, probably due to supply and demand, but if you select the Kindle version, it’s much cheaper with no loss of quality (because the illustrations are black-on-white line-drawings and very clear; perfect for Kindle e-ink)

    The style of the book is very casual and conversational, yet somehow doesn’t let that distract it from being incredibly information dense; there is no fluff here, just valuable guidance.

    Bottom line: if you would like to be more robust with non-nonsense exercises, then this book is a fine choice.

    Click here to check out Super Joints, and make yours flexible and strong!

    Don’t Forget…

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  • Does Ginseng Increase Testosterone Levels?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    The 10almonds Team

    ❓ Q&A With 10almonds Subscribers!

    Q: You talked about spearmint as reducing testosterone levels, what about ginseng for increasing them?

    A: Hormones are complicated and often it’s not a simple matter of higher or lower levels! It can also be a matter of…

    • how your body converts one thing into another
    • how your body responds (or not) to something according to how the relevant hormone’s receptors are doing
    • …and whether there’s anything else blocking those receptors.

    All this to say: spearmint categorically is an anti-androgen, but the mechanism of action remains uncertain.

    Panax ginseng, meanwhile, is one of the most well-established mysteries in herbal medicine.

    Paradoxically, it seems to improve both male and female hormonal regulation, despite being more commonly associated with the former.

    But it also…

    Bottom line: Panax ginseng is popularly taken to improve natural hormone function, a task at which it appears to excel.

    Scientists are still working out exactly how it does the many things it appears to do.

    Progress has been made, and it clearly is science rather than witchcraft, but there are still far more unanswered questions than resolved ones!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Do Hard Things – by Steve Magness

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    The 10almonds Team

    It’s easy to say that we must push ourselves if we want to achieve worthwhile things—and it’s also easy to push ourselves into an early grave by overreaching. So, how to do the former, without doing the latter?

    That’s what this book’s about. The author, speaking from a background in the science of sports psychology, applies his accumulated knowledge and understanding to the more general problems of life.

    Most of us are, after all, not sportspeople or if we are, not serious ones. Those few who are, will get benefit from this book too! But it’s mostly aimed at the rest of us who are trying to work out whether/when we should scale up, scale back, change track, or double down:

    • How much can we really achieve in our career?
    • How about in retirement?
    • Do we ever really get too old for athletic feats, or should we keep pressing on?

    Magness brings philosophy and psychological science together, to help us sort our way through.

    Nor is this just a pep talk—there’s readily applicable, practical, real-world advice here, things to enable us to do our (real!) best without getting overwhelmed.

    The style is pop-science, very easy-reading, and clear and comprehensible throughout—without succumbing to undue padding either.

    Bottom line: this is a very pleasant read, that promises to make life more meaningful and manageable at the same time. Highly recommendable!

    Click here to check out Do Hard Things, and get the most out of life!

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