What Too Much Exercise Does To Your Body And Brain

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“Get more exercise” is a common rallying-cry for good health, but it is possible to overdo it. And, this is not just a matter of extreme cases of “exercise addiction”, but even going much above certain limits can already result in sabotaging one’s healthy gains. But how, and where does the line get drawn?

Too Much Of A Good Thing

The famous 150 minutes per week of moderate exercise (or 75 minutes of intense exercise) is an oft-touted figure. This video, on the other hand, springs for 5 hours of moderate exercise or 2.5 hours intense exercise as a good guideline.

We’re advised that going over those guidelines doesn’t necessarily increase health benefits, and on the contrary, may reduce or even reverse them. For example, we are told…

  • Light to moderate running reduces the risk of death, but running intensely more than 3 times a week can negate these benefits.
  • Extreme endurance exercises, like ultra-marathons, may cause heart damage, heart rhythm disorders, and artery enlargement.
  • Women who exercise strenuously every day have a higher risk of heart attacks and strokes compared to those who exercise moderately.
  • Excessive exercise in women can lead to the “female athlete triad” (loss of menstruation, osteoporosis, and eating disorders).
  • In men, intense exercise can lower libido due to fatigue and reduced testosterone levels.
  • Both men and women are at increased risk of overuse injuries (e.g., tendinitis, stress fractures) and impaired immunity from excessive exercise.
  • There is a 72-hour window of impaired immunity after intense exercise, increasing the risk of infections.

Exercise addiction is rare, though, with this video citing “around 1 million people in the US suffer from exercise addiction”.

For more on finding the right balance, enjoy:

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  • The Good Skin Solution – by Shann Jones

    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.

    Not everyone knows that eczema is not just a skin condition; it’s an autoimmune condition. And thus to heal one’s skin, the gut is a good place to start.

    This is not your average gut health book though, because it is focused on optimizing things for one’s skin… Although the author herself learned about this while helping her husband to battle an MRSA infection. In other words, a multi-fronted battle for sure.

    The advices in this book are good for, as the subtitle promises, an assortment of other skin conditions too, including psoriasis, rosacea, and acne. She covers the usual bases, and recommends probiotics, of which she’s particularly keen to praise kefir, while advising against the use of antibiotics unless absolutely necessary—something we’ve talked about from time to time at 10almonds, too.

    Not content to merely cover those things, she also talks allergies, and walking the fine line between avoiding triggers and developing hypersensitivity by treating to live in a perfectly clean bubble.

    Ultimately, she offers “7 daily habits”, 3 of which involve goat’s milk kefir, that’s how keen on it she is. So if you’re vegan, probably this book isn’t as good value, however much it discusses the health woes that can be caused and/or exacerbated by drinking cow’s milk.

    The style is very light and personable, which makes for easy reading, more like one friend talking to another, than a scientific textbook.

    Bottom line: if you’d like healthier skin, are interested in dietary tweaks and homemade soaps, and have no aversion to goat’s milk and/or kefir, then this book is full of fascinating pointers.

    Click here to check out The Good Skin Solution, and who knows, maybe you’ll find it’s the G.O.A.T!

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  • Bold Beans – by Amelia Christie-Miller

    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 all know beans are one of the most healthful foods around, but how to include more of them, without getting boring?

    This book has the answer, giving 80 exciting recipes, divided into the following sections:

    • Speedy beans
    • Bean snacks & sharing plates
    • Brothy beans
    • Bean bowls
    • Hearty salads
    • Bean feasts

    The recipes are obviously all bean-centric, though if you have a particular dietary restriction, watch out for the warning labels on some (e.g. meat, fish, dairy, gluten, etc), and make a substitution if appropriate.

    The recipes themselves have a happily short introductory paragraph, followed by all you’d expect from a recipe book (ingredients, measurements, method, picture)

    There’s also a reference section, to learn about different kinds of beans and bean-related culinary methods that can be applied per your preferences.

    Bottom line: if you’d like to include more beans in your daily diet but are stuck for making them varied and interesting, this is the book for you!

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  • I’m iron deficient. Which supplements will work best for me and how should I take them?

    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.

    Iron deficiency is common and can be debilitating. It mainly affects women. One in three premenopausal women are low in iron compared to just 5% of Australian men. Iron deficiency particularly affects teenage girls, women who do a lot of exercise and those who are pregnant.

    The body needs iron to make new red blood cells, and to support energy production, the immune system and cognitive function. If you’re low, you may experience a range of symptoms including fatigue, weakness, shortness of breath, headache, irregular heartbeat and reduced concentration.

    If a blood test shows you’re iron deficient, your doctor may recommend you start taking an oral iron supplement. But should you take a tablet or a liquid? With food or not? And when is the best time of day?

    Here are some tips to help you work out how, when and what iron supplement to take.

    LittlePigPower/Shutterstock

    How do I pick the right iron supplement?

    The iron in your body is called “elemental iron”. Choosing the right oral supplement and dose will depend on how much elemental iron it has – your doctor will advise exactly how much you need.

    The sweet spot is between 60-120 mg of elemental iron. Any less and the supplement won’t be effective in topping up your iron levels. Any higher and you risk gastrointestinal symptoms such as diarrhoea, cramping and stomach pain.

    Three pregnant bellies during a stretching class.
    Low iron can especially affect people during pregnancy and women who do a lot of sport. Kamil Macniak/Shutterstock

    In Australia, iron salts are the most common oral supplements because they are cheap, effective and come in different delivery methods (tablets, capsules, liquid formulas). The iron salts you are most likely to find in your local chemist are ferrous sulfate (~20% elemental iron), ferrous gluconate (~12%) and ferrous fumarate (~33%).

    These formulations all work similarly, so your choice should come down to dose and cost.

    Many multivitamins may look like an iron supplement, but it’s important to note they usually have too little iron – usually less than 20 mg – to correct an iron deficiency.

    Should I take tablets or liquid formulas?

    Iron contained within a tablet is just as well absorbed as iron found in a liquid supplement. Choosing the right one usually comes down to personal preference.

    The main difference is that liquid formulas tend to contain less iron than tablets. That means you might need to take more of the product to get the right dose, so using a liquid supplement could work out to be more expensive in the long term.

    What should I eat with my iron supplement?

    Research has shown you will absorb more of the iron in your supplement if you take it on an empty stomach. But this can cause more gastrointestinal issues, so might not be practical for everyone.

    If you do take your supplement with meals, it’s important to think about what types of food will boost – rather than limit – iron absorption. For example, taking the supplement alongside vitamin C improves your body’s ability to absorb it.

    Some supplements already contain vitamin C. Otherwise you could take the supplement along with a glass of orange juice, or other vitamin C-rich foods.

    A woman pours orange juice into a glass next to a bowl of strawberries and kiwifruit.
    Taking your supplement alongside foods rich in vitamin C, like orange juice or kiwifruit, can help your body absorb the iron. Anete Lusina/Pexels

    On the other hand, tea, coffee and calcium all decrease the body’s ability to absorb iron. So you should try to limit these close to the time you take your supplement.

    Should I take my supplement in the morning or evening?

    The best time of day to take your supplement is in the morning. The body can absorb significantly more iron earlier in the day, when concentrations of hepcidin (the main hormone that regulates iron) are at their lowest.

    Exercise also affects the hormone that regulates iron. That means taking your iron supplement after exercising can limit your ability to absorb it. Taking your supplement in the hours following exercise will mean significantly poorer absorption, especially if you take it between two and five hours after you stop.

    Our research has shown if you exercise every day, the best time to take your supplement is in the morning before training, or immediately after (within 30 minutes).

    My supplements are upsetting my stomach. What should I do?

    If you experience gastrointestinal side effects such as diarrhoea or cramps when you take iron supplements, you may want to consider taking your supplement every second day, rather than daily.

    Taking a supplement every day is still the fastest way to restore your iron levels. But a recent study has shown taking the same total dose can be just as effective when it’s taken on alternate days. For example, taking a supplement every day for three months works as well as every second day for six months. This results in fewer side effects.

    Oral iron supplements can be a cheap and easy way to correct an iron deficiency. But ensuring you are taking the right product, under the right conditions, is crucial for their success.

    It’s also important to check your iron levels prior to commencing iron supplementation and do so only under medical advice. In large amounts, iron can be toxic, so you don’t want to be consuming additional iron if your body doesn’t need it.

    If you think you may be low on iron, talk to your GP to find out your best options.

    Alannah McKay, Postdoctoral Research Fellow, Sports Nutrition, Australian Catholic University

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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    Sometimes we crave changing things up, just to feel something new. This can result in anything from bad haircut decisions or impulsive purchases, to crashing and burning-out of a job, project, or relationship. It doesn’t have to be that way, though!

    This book brings us (as the title suggest) 100 evidence-based ways of changing things up in a good way—small things that can make a big difference in many areas of life.

    In terms of format, these are presented in 100 tiny chapters, each approximately 2 pages long (obviously it depends on the edition, but you get the idea). Great to read in any of at least three ways:

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    2. One per day for 100 days
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    Bottom line: even if you already do half of these things, the other half will each compound your health happiness one-by-one as you add them. This is a very enjoyable and practical book!

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  • Greek Yogurt vs Cottage Cheese – Which is Healthier?

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    Our Verdict

    When comparing Greek yogurt to cottage cheese, we picked the yogurt.

    Why?

    These are both dairy products popularly considered healthy, mostly for their high-protein, low-carb, low-fat profile. We’re going to assume that both were made without added sugars. Thus, their macro profiles are close to identical, and nothing between them there.

    In the category of vitamins, both are a good source of some B vitamins, and neither are good source of much else. The B-vitamins they have most of, B2 and B12, Greek yogurt has more.

    We’ll call this a small win for Greek yogurt.

    As they are dairy products, you might have expected them to contain vitamin D—however (unless they have been artificially fortified, as is usually done with plant-based equivalents) they contain none or trace amounts only.

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    Since it’s also a mineral (even if it’s usually one we’re more likely to be trying to get less of), it’s also worth noting here that cottage cheese is quite high in sodium, while Greek yogurt is not.

    Another win for Greek yogurt.

    Beyond those things, we’d be remiss not to mention that Greek yogurt contains plenty of probiotic bacteria, while cottage cheese does not.

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  • Clean Needles Save Lives. In Some States, They Might Not Be Legal.

    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.

    Kim Botteicher hardly thinks of herself as a criminal.

    On the main floor of a former Catholic church in Bolivar, Pennsylvania, Botteicher runs a flower shop and cafe.

    In the former church’s basement, she also operates a nonprofit organization focused on helping people caught up in the drug epidemic get back on their feet.

    The nonprofit, FAVOR ~ Western PA, sits in a rural pocket of the Allegheny Mountains east of Pittsburgh. Her organization’s home county of Westmoreland has seen roughly 100 or more drug overdose deaths each year for the past several years, the majority involving fentanyl.

    Thousands more residents in the region have been touched by the scourge of addiction, which is where Botteicher comes in.

    She helps people find housing, jobs, and health care, and works with families by running support groups and explaining that substance use disorder is a disease, not a moral failing.

    But she has also talked publicly about how she has made sterile syringes available to people who use drugs.

    “When that person comes in the door,” she said, “if they are covered with abscesses because they have been using needles that are dirty, or they’ve been sharing needles — maybe they’ve got hep C — we see that as, ‘OK, this is our first step.’”

    Studies have identified public health benefits associated with syringe exchange services. The Centers for Disease Control and Prevention says these programs reduce HIV and hepatitis C infections, and that new users of the programs are more likely to enter drug treatment and more likely to stop using drugs than nonparticipants.

    This harm-reduction strategy is supported by leading health groups, such as the American Medical Association, the World Health Organization, and the International AIDS Society.

    But providing clean syringes could put Botteicher in legal danger. Under Pennsylvania law, it’s a misdemeanor to distribute drug paraphernalia. The state’s definition includes hypodermic syringes, needles, and other objects used for injecting banned drugs. Pennsylvania is one of 12 states that do not implicitly or explicitly authorize syringe services programs through statute or regulation, according to a 2023 analysis. A few of those states, but not Pennsylvania, either don’t have a state drug paraphernalia law or don’t include syringes in it.

    Those working on the front lines of the opioid epidemic, like Botteicher, say a reexamination of Pennsylvania’s law is long overdue.

    There’s an urgency to the issue as well: Billions of dollars have begun flowing into Pennsylvania and other states from legal settlements with companies over their role in the opioid epidemic, and syringe services are among the eligible interventions that could be supported by that money.

    The opioid settlements reached between drug companies and distributors and a coalition of state attorneys general included a list of recommendations for spending the money. Expanding syringe services is listed as one of the core strategies.

    But in Pennsylvania, where 5,158 people died from a drug overdose in 2022, the state’s drug paraphernalia law stands in the way.

    Concerns over Botteicher’s work with syringe services recently led Westmoreland County officials to cancel an allocation of $150,000 in opioid settlement funds they had previously approved for her organization. County Commissioner Douglas Chew defended the decision by saying the county “is very risk averse.”

    Botteicher said her organization had planned to use the money to hire additional recovery specialists, not on syringes. Supporters of syringe services point to the cancellation of funding as evidence of the need to change state law, especially given the recommendations of settlement documents.

    “It’s just a huge inconsistency,” said Zoe Soslow, who leads overdose prevention work in Pennsylvania for the public health organization Vital Strategies. “It’s causing a lot of confusion.”

    Though sterile syringes can be purchased from pharmacies without a prescription, handing out free ones to make drug use safer is generally considered illegal — or at least in a legal gray area — in most of the state. In Pennsylvania’s two largest cities, Philadelphia and Pittsburgh, officials have used local health powers to provide legal protection to people who operate syringe services programs.

    Even so, in Philadelphia, Mayor Cherelle Parker, who took office in January, has made it clear she opposes using opioid settlement money, or any city funds, to pay for the distribution of clean needles, The Philadelphia Inquirer has reported. Parker’s position signals a major shift in that city’s approach to the opioid epidemic.

    On the other side of the state, opioid settlement funds have had a big effect for Prevention Point Pittsburgh, a harm reduction organization. Allegheny County reported spending or committing $325,000 in settlement money as of the end of last year to support the organization’s work with sterile syringes and other supplies for safer drug use.

    “It was absolutely incredible to not have to fundraise every single dollar for the supplies that go out,” said Prevention Point’s executive director, Aaron Arnold. “It takes a lot of energy. It pulls away from actual delivery of services when you’re constantly having to find out, ‘Do we have enough money to even purchase the supplies that we want to distribute?’”

    In parts of Pennsylvania that lack these legal protections, people sometimes operate underground syringe programs.

    The Pennsylvania law banning drug paraphernalia was never intended to apply to syringe services, according to Scott Burris, director of the Center for Public Health Law Research at Temple University. But there have not been court cases in Pennsylvania to clarify the issue, and the failure of the legislature to act creates a chilling effect, he said.

    Carla Sofronski, executive director of the Pennsylvania Harm Reduction Network, said she was not aware of anyone having faced criminal charges for operating syringe services in the state, but she noted the threat hangs over people who do and that they are taking a “great risk.”

    In 2016, the CDC flagged three Pennsylvania counties — Cambria, Crawford, and Luzerne — among 220 counties nationwide in an assessment of communities potentially vulnerable to the rapid spread of HIV and to new or continuing high rates of hepatitis C infections among people who inject drugs.

    Kate Favata, a resident of Luzerne County, said she started using heroin in her late teens and wouldn’t be alive today if it weren’t for the support and community she found at a syringe services program in Philadelphia.

    “It kind of just made me feel like I was in a safe space. And I don’t really know if there was like a come-to-God moment or come-to-Jesus moment,” she said. “I just wanted better.”

    Favata is now in long-term recovery and works for a medication-assisted treatment program.

    At clinics in Cambria and Somerset Counties, Highlands Health provides free or low-cost medical care. Despite the legal risk, the organization has operated a syringe program for several years, while also testing patients for infectious diseases, distributing overdose reversal medication, and offering recovery options.

    Rosalie Danchanko, Highlands Health’s executive director, said she hopes opioid settlement money can eventually support her organization.

    “Why shouldn’t that wealth be spread around for all organizations that are working with people affected by the opioid problem?” she asked.

    In February, legislation to legalize syringe services in Pennsylvania was approved by a committee and has moved forward. The administration of Gov. Josh Shapiro, a Democrat, supports the legislation. But it faces an uncertain future in the full legislature, in which Democrats have a narrow majority in the House and Republicans control the Senate.

    One of the bill’s lead sponsors, state Rep. Jim Struzzi, hasn’t always supported syringe services. But the Republican from western Pennsylvania said that since his brother died from a drug overdose in 2014, he has come to better understand the nature of addiction.

    In the committee vote, nearly all of Struzzi’s Republican colleagues opposed the bill. State Rep. Paul Schemel said authorizing the “very instrumentality of abuse” crossed a line for him and “would be enabling an evil.”

    After the vote, Struzzi said he wanted to build more bipartisan support. He noted that some of his own skepticism about the programs eased only after he visited Prevention Point Pittsburgh and saw how workers do more than just hand out syringes. These types of programs connect people to resources — overdose reversal medication, wound care, substance use treatment — that can save lives and lead to recovery.

    “A lot of these people are … desperate. They’re alone. They’re afraid. And these programs bring them into someone who cares,” Struzzi said. “And that, to me, is a step in the right direction.”

    At her nonprofit in western Pennsylvania, Botteicher is hoping lawmakers take action.

    “If it’s something that’s going to help someone, then why is it illegal?” she said. “It just doesn’t make any sense to me.”

    This story was co-reported by WESA Public Radio and Spotlight PA, an independent, nonpartisan, and nonprofit newsroom producing investigative and public-service journalism that holds power to account and drives positive change in Pennsylvania.

    KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

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    This story can be republished for free (details).

    KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

    Subscribe to KFF Health News’ free Morning Briefing.

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