
Saffron For The Brain (& More)
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Saffron For The Brain (& More)
In yesterday’s edition of 10almonds, one of the items in the “health news from around the world” section was:
Clinical trial finds herbal medicine Sailuotong effective for brain health in older people
But, what is it?
❝SaiLuoTong (SLT) is a modern compound Chinese herbal medicine preparation in capsule form containing standardized extracts of Panax ginseng, Ginkgo biloba, and Crocus sativus L❞
We’ve written previously about ginseng and ginkgo biloba:
So, what’s this about Crocus sativus L.?
That is the plant better known as saffron. And, for all its wide availability (your local supermarket probably has at least a tiny amount in the spice section), there’s a reason we don’t see much of it:
❝Saffron blooms only once a year and should be collected within a very short duration. It is picked during 3–4 weeks in October-November. The method for the cultivation of saffron contributes greatly to its high price. According to some reports, this species is a sterile triploid and so does not produce fertile seeds. Germination can take 1–6 months at 18°C. It takes 3 years for plants to flower from seed.❞
Source: Crocus sativus L.: A comprehensive review
That’s fascinating, but what does it do for us?
Well, in the words of El Midaoui et al. (2022):
❝In the frame of a double-blind-placebo-controlled study, 30 mg per day supplementation with saffron for 16 weeks resulted in improved cognitive function in patients suffering from mild to moderate Alzheimer’s disease.
Moreover, the follow-up of this study in which the authors evaluated the effects of saffron (30 mg/day) for 22 weeks showed that saffron was as effective as donepezil in the treatment of mild-to-moderate Alzheimer’s disease❞
Read the full review: Saffron (Crocus sativus L.): A Source of Nutrients for Health and for the Treatment of Neuropsychiatric and Age-Related Diseases
Not just that, but it also has powerful antioxidant and anti-inflammatory properties beyond the brain (though the brain is where research has been most focused, due to its neuroprotective effects).
(this, too, is a full research review in its own right; we’re getting a lot of “bang for buck” on papers today)
And more?
Yes, and more. Lots more. To bullet-pointify even just the abstract from another research review:
- Saffron has been suggested to be effective in the treatment of a wide range of disorders including coronary artery diseases, hypertension, stomach disorders, dysmenorrhea and learning and memory impairments.
- In addition, different studies have indicated that saffron has anti-inflammatory, anti-atherosclerotic, antigenotoxic and cytotoxic activities. (This is all good; the cytotoxic activities are about killing cancer cells)
- Antitussive effects of stigmas and petals of C. sativus and its components, safranal and crocin have also been demonstrated.
- The anticonvulsant and anti-Alzheimer properties of saffron extract were shown in human and animal studies.
- The efficacy of C. sativus in the treatment of mild to moderate depression was also reported in clinical trial.
- Administration of C. sativus and its constituents increased glutamate and dopamine levels in the brain in a dose-dependent manner.
- It also interacts with the opioid system to reduce withdrawal syndrome.
- C. sativus and its components can be considered as promising agents in the treatment of nervous system disorders.
For more details on any of those items, see:
The effects of Crocus sativus (saffron) and its constituents on nervous system: a review
Is it safe?
The effective dose is 30mg/kg and the LD50 is more than 20g/kg, so yes, it’s very safe. Given the price of it, this also means that if you’re the size of this writer (a little over 70kg, or a little over 150lbs) to poison yourself effectively you’d need to consume about 1.4kg of saffron at a time, which would cost well over $6,000.
Where can I get it?
Your local supermarket probably has a tiny amount in the spice section, or you can get better prices buying it in “bulk” online. Here’s an example product on Amazon, for your convenience
Enjoy!
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Why You Should Diversify Your Nuts!
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Time to go nuts for nuts!
Nuts, in popular perception, range from “basically the healthiest food anyone can eat” to “basically high calorie salty snacks”. And, they can be either!
Some notes, then:
- Raw is generally better that not
- Dry roasted is generally better than the kind with added oils
- Added salt is neither necessary nor good
Quick tip: if “roasted salted” are the cheapest or most convenient to buy, you can at least mitigate that by soaking them in warm water for 5 minutes, before rinsing and (if you don’t want wet nuts) drying.
You may be wondering: who does want wet nuts? And the answer is, if for example you’re making a delicious cashew and chickpea balti, the fact you didn’t dry them before throwing them in won’t make a difference.
Now, let’s do a quick run-down; we don’t usually do “listicles” but it seemed a good format here, so we’ve picked a top 5 for nutritional potency:
Almonds
We may have a bias. We accept it. But almonds are also one of the healthiest nuts around, and generally considered by most popular metrics the healthiest.
Not only are they high in protein, healthy fat, fiber, vitamins, and minerals, but they’re even a natural prebiotic that increases the populations of healthy gut bacteria, while simultaneously keeping down the populations of gut pathogens—what more can we ask of a nut?
Read more: Prebiotic effects of almonds and almond skins on intestinal microbiota in healthy adult humans
Pistachios
Not only are these super tasty and fun to eat (and mindful eating is all but guaranteed, as shelling them by hand slows us down and makes us more likely to eat them one at a time rather than by the handful), but also they contain lots of nutrients and are lower in calories than most nuts, so they’re a great option for anyone who’d like to eat more nuts but is doing a calorie-controlled diet and doesn’t want to have half a day’s calories in a tiny dish of nuts.
Walnuts
Popularly associated with brain health (perhaps easy to remember because of their appearance), they really are good for the brain:
Check it out: Beneficial Effects of Walnuts on Cognition and Brain Health
Cashews
A personal favorite of this writer for their versatility in cooking, food prep, or just as a snack, they also do wonders for metabolic health:
Brazil nuts
The most exciting thing about these nuts is that they’re an incredibly potent source of selenium, which is important not just for hair/skin/nails as popularly marketed, but also for thyroid hormone production and DNA synthesis.
But don’t eat too many, because selenium is definitely one of those “you can have too much of a good thing” nutrients, and selenium poisoning can make your hair (however beautiful and shiny it got because of the selenium) fall out if you take too much.
Know the numbers: Brazil nuts and selenium—health benefits and risks
Bottom line on nuts:
- Nuts are a great and healthful part of almost anyone’s diet
- Obviously, if you have a nut allergy, then we’re sorry; this one won’t have helped you so much
- Almonds are one of the most healthful nuts out there
- Brazil nuts are incredibly potent, to the point where moderation is recommended
- A handful of mixed nuts per day is a very respectable option—when it comes to food and health, diversity is almost always good!
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The Healthiest Bread Recipe You’ll Probably Find
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It’s Q&A Day at 10almonds!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝[About accidental scalding with water] Is cold water actually the best immediate treatment for a burn? Maybe there is something better, or something I should apply after the cold water.❞
If this is a case of spilled tea or similar—as in your story, which (apologies) we clipped for brevity—indeed, cold running water is best, and nothing else should be needed. It’s up to you whether you want to invest the time based on the extent of the scalding, but 10 minutes is recommended to minimize tissue damage.
If it’s a more severe scalding or burning, seek medical attention immediately. If it’s a burn to anywhere other than the airway, cold running water is still best for 10 minutes, but if you have to choose between that and professional medical attention, don’t delay the help.
If it’s a burn you’ve given 10 minutes of cold running water and it still hurts and/or has blistered, cover it in a sterile, non-adhesive dressing that extends well beyond the visible burn (because the actual damage probably extends further, and you don’t want to find this out the hard way later). If the burn is to the face, do still irrigate but not cover it; wait for help.
Do not apply any kind of cream, lotion, oil, etc. No matter how tempting, no matter where the burn is.
All of the above also goes for splashed oil, chemical burns, and electrical burns too (but obviously, make sure to get away from the electricity first).
Source: this ex-military writer was trained for this sort of thing and, suffice it to say, has dealt with more serious things than spilled tea before now.
Legal note: notwithstanding the above, we are a health science newsletter, not paramedics. Also, circumstances may differ, and best practices may change. In the case of serious injury, call emergency services first, and follow their instructions over ours.
Take care!
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Wakefulness, Cognitive Enhancement, AND Improved Mood?
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Old Drug, New Tricks?
Modafinil (also known by brand names including Modalert and Provigil) is a dopamine uptake inhibitor.
What does that mean? It means it won’t put any extra dopamine in your brain, but it will slow down the rate at which your brain removes naturally-occuring dopamine.
The result is that your brain will get to make more use of the dopamine it does have.
(dopamine is a neutrotransmitter that allows you to feel wakeful and happy, and perform complex cognitive tasks)
Modafinil is prescribed for treatment of excessive daytime sleepiness. Often that’s caused by shift work sleep disorder, sleep apnea, restless leg syndrome, or narcolepsy.
Read: Overview of the Clinical Uses, Pharmacology, and Safety of Modafinil
Many studies done on humans (rather than rats) have been military experiments to reduce the effects of sleep deprivation:
Click Here To See A Military Study On Modafinil!
They’ve found modafinil to be helpful, and more effective and more long-lasting than caffeine, without the same “crash” later. This is for two reasons:
1) while caffeine works by blocking adenosine (so you don’t feel how tired you are) and by constricting blood vessels (so you feel more ready-for-action), modafinil works by allowing your brain to accumulate more dopamine (so you’re genuinely more wakeful, and you get to keep the dopamine)
2) the biological half-life of modafinil is 12–15 hours, as opposed to 4–8 hours* for caffeine.
*Note: a lot of sources quote 5–6 hours for caffeine, but this average is misleading. In reality, we are each genetically predetermined to be either a fast caffeine metabolizer (nearer 4 hours) or a slow caffeine metabolizer (nearer 8 hours).
What’s a biological half-life (also called: elimination half-life)?
A substance’s biological half-life is the time it takes for the amount in the body to be reduced by exactly half.
For example: Let’s say you’re a fast caffeine metabolizer and you have a double-espresso (containing 100mg caffeine) at 8am.
By midday, you’ll have 50mg of caffeine left in your body. So far, so simple.
By 4pm you might expect it to be gone, but instead you have 25mg remaining (because the amount halves every four hours).
By 8pm, you have 12.5mg remaining.
When midnight comes and you’re tucking yourself into bed, you still have 6.25mg of caffeine remaining from your morning coffee!
Use as a nootropic
Many healthy people who are not sleep-deprived use modafinil “off-label” as a nootropic (i.e., a cognitive enhancer).
Read: Modafinil for cognitive neuroenhancement in healthy non-sleep-deprived subjects: A systematic review
Important Note: modafinil is prescription-controlled, and only FDA-approved for sleep disorders.
To get around this, a lot of perfectly healthy biohackers describe the symptoms of sleep pattern disorder to their doctor, to get a prescription.
We do not recommend lying to your healthcare provider, and nor do we recommend turning to the online “grey market”.
Such websites often use anonymized private doctors to prescribe on an “informed consent” basis, rather than making a full examination. Those websites then dispense the prescribed medicines directly to the patient with no further questions asked (i.e. very questionable practices).
Caveat emptor!
A new mood-brightener?
Modafinil was recently tested head-to-head against Citalapram for the treatment of depression, and scored well:
See its head-to-head scores here!
How does it work? Modafinil does for dopamine what a lot of anti-depressants do for serotonin. Both dopamine and serotonin promote happiness and wakefulness.
This is very promising, especially as modafinil (in most people, at least) has fewer unwanted side-effects than a lot of common anti-depressant medications.
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What you need to know about H5N1 bird flu
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On May 30, the Centers for Disease Control and Prevention reported that a Michigan dairy worker tested positive for H5N1 bird flu. It was the fourth person to test positive for H5N1 in the United States, following another recent case in Michigan, an April case in Texas, and an initial case in Colorado in 2022.
H5N1 bird flu has been spreading among bird species in the U.S. since 2021, killing millions of wild birds and poultry. In late March 2024, H5N1 bird flu was found in cows for the first time, causing an outbreak in dairy cows across several states.
U.S. public health officials and researchers are particularly concerned about this outbreak because the virus has infected cows and other mammals and has spread from a cow to a human for the first time.
This bird flu strain has shown to not only make wild mammals, including marine mammals and bears, very sick but to also cause high rates of death among species, says Jane Sykes, professor of small animal medicine at the University of California, Davis, School of Veterinary Medicine.
“And now that it has been found in cattle, [it] raises particular concern for spread to all the animal species, including people,” adds Sykes.
Even though the risk for human infection is low and there has never been human-to-human transmission of H5N1, there are several actions you can take to stay protected. Read on to learn more about H5N1 bird flu and the current outbreak.
What is H5N1?
H5N1 is a type of influenza virus that most commonly affects birds, causing them severe respiratory illness and death.
The H5N1 strain first emerged in China in the 1990s, and it has continued to spread around the world since then. In 1997, the virus spread from animals to humans in Hong Kong for the first time, infecting 18 people, six of whom died.
Since 2020, the H5N1 strain has caused “an unprecedented number of deaths in wild birds and poultry in many countries,” according to the World Health Organization.
Even though bird flu is rare in humans, an H5N1 infection can cause mild to severe illness and can be fatal in some cases. It can cause eye infection, upper respiratory symptoms, and pneumonia.
What do we know about the 2024 human cases of H5N1 in the U.S.?
The Michigan worker who tested positive for H5N1 in late May is a dairy worker who was exposed to infected livestock. They were the first to experience respiratory symptoms—including a cough without a fever—during the current outbreak. They were given an antiviral and the CDC says their symptoms are resolving.
The Michigan farm worker who tested positive earlier in May only experienced eye-related symptoms and has already recovered. And the dairy worker who tested positive for the virus in Texas in April only experienced eye redness as well, was treated with an antiviral medication for the flu, and is recovering.
Is H5N1 bird flu in the milk we consume?
The Food and Drug Administration has found traces of H5N1 bird flu virus in raw or unpasteurized milk. However, pasteurized milk is safe to drink.
Pasteurization, the process of heating milk to high temperatures to kill harmful bacteria (which the majority of commercially sold milk goes through), deactivates the virus. In 20 percent of pasteurized milk samples, the FDA found small, inactive (not live nor infectious) traces of the virus, but these fragments do not make pasteurized milk dangerous.
In a recent Infectious Diseases Society of America briefing, Dr. Maximo Brito, a professor at the University of Illinois College of Medicine, said that it’s important for people to avoid “drinking unpasteurized or raw milk [because] there are other diseases, not only influenza, that could be transmitted by drinking unpasteurized milk.”
What can I do to prevent bird flu?
While the risk of H5N1 infection in humans is low, people with exposure to infected animals (like farmworkers) are most at risk. But there are several actions you can take to stay protected.
One of the most important things, according to Sykes, is taking the usual precautions we’ve taken with COVID-19 and other respiratory viruses, including frequent handwashing, especially before eating.
“Handwashing and mask-wearing [are important], just as we learned from the pandemic,” Sykes adds. “And it’s not wearing a mask at all times, but thinking about high-risk situations, like when you’re indoors in a crowded environment, where transmission of respiratory viruses is much more likely to occur.”
There are other steps you can take to prevent H5N1, according to the CDC:
- Avoid direct contact with sick or dead animals, including wild birds and poultry.
- Don’t touch surfaces that may have been contaminated with animal poop, saliva, or mucus.
- Cook poultry and eggs to an internal temperature of 165 degrees Fahrenheit to kill any bacteria or virus, including H5N1. Generally, avoid eating undercooked food.
- Avoid consuming unpasteurized or raw milk or products like cheeses made with raw milk.
- Avoid eating uncooked or undercooked food.
- Poultry and livestock farmers and workers and bird flock owners should wear masks and other personal protective equipment “when in direct or close physical contact with sick birds, livestock, or other animals; carcasses; feces; litter; raw milk; or surfaces and water that might be contaminated with animal excretions from potentially or confirmed infected birds, livestock, or other animals.” (The CDC has more recommendations for this population here.)
Is there a vaccine for H5N1?
The CDC said there are two candidate H5N1 vaccines ready to be made and distributed in case the virus starts to spread from person to person, and the country is now moving forward with plans to produce millions of vaccine doses.
The FDA has approved several bird flu vaccines since 2007. The U.S. has flu vaccines in stockpile through the National Pre-Pandemic Influenza Vaccine Stockpile program, which allows for quick response as strains of the flu virus evolve.
Could this outbreak become a pandemic?
Scientists and researchers are concerned about the possibility of H5N1 spreading among people and causing a pandemic. “Right now, the risk is low, but as time goes on, the potential for mutation to cause widespread human infection increases,” says Sykes.
“I think this virus jumping into cows has shown the urgency to keep tracking [H5N1] a lot more closely now,” Peter Halfmann, research associate professor at the University of Wisconsin-Madison’s Influenza Research Institute tells PGN. “We have our eyes on surveillance now. … We’re keeping a much closer eye, so it’s not going to take us by surprise.”
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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5 dental TikTok trends you probably shouldn’t try at home
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TikTok is full of videos that demonstrate DIY hacks, from up-cycling tricks to cooking tips. Meanwhile, a growing number of TikTok videos offer tips to help you save money and time at the dentist. But do they deliver?
Here are five popular dental TikTok trends and why you might treat them with caution.
1. Home-made whitening solutions
Many TikTok videos provide tips to whiten teeth. These include tutorials on making your own whitening toothpaste using ingredients such as hydrogen peroxide, a common household bleaching agent, and baking soda (sodium bicarbonate).
In this video, the influencer says:
And then you’re going to pour in your hydrogen peroxide. There’s really no measurement to this.
But hydrogen peroxide in high doses is poisonous if swallowed, and can burn your gums, mouth and throat, and corrode your teeth.
High doses of hydrogen peroxide may infiltrate holes or microscopic cracks in your teeth to inflame or damage the nerves and blood vessels in the teeth, which can cause pain and even nerve death. This is why dental practitioners are bound by rules when we offer whitening treatments.
Sodium bicarbonate and hydrogen peroxide are among the components in commercially available whitening toothpastes. While these commercial products may be effective at removing surface stains, their compositions are carefully curated to keep your smile safe.
2. Oil pulling
Oil pulling involves swishing one tablespoon of sesame or coconut oil in your mouth for up to 20 minutes at a time. It has roots in Ayurvedic medicine, a traditional medicine practice that originates from the Indian subcontinent.
While oil pulling should be followed by brushing and flossing, I’ve had patients who believe oil pulling is a replacement for these practices.
There has been some research on the potential of oil pulling to treat gum disease or other diseases in the mouth. But overall, evidence that supports the effectiveness of oil pulling is of low certainty.
For example, studies that test the effectiveness of oil pulling have been conducted on school-aged children and people with no dental problems, and often measure dental plaque growth over a few days to a couple of weeks.
Chlorhexidine is an ingredient found in some commercially available mouthwashes.
In one study, people who rinsed with chlorhexidine mouthwash (30 seconds twice daily) developed less plaque on their teeth compared to those who undertook oil pulling for eight to 10 minutes.Ultimately, it’s unlikely you will experience measurable gain to your oral health by adding oil pulling to your daily routine. If you’re time-poor, you’re better off focusing on brushing your teeth and gums well alongside flossing.
3. Using rubber bands to fix gaps
This TikTok influencer shows his followers he closed the gaps between his front teeth in a week using cheap clear rubber bands.
But this person may be one of the lucky few to successfully use bands to close a gap in his teeth without any mishaps. Front teeth are slippery and taper near the gums into cone-shaped roots. This can cause bands to slide and disappear into the gums to surround the tooth roots, which can cause infections and pain.
If this happens, you may require surgery that involves cutting your gums to remove the bands. If the bands have caused an infection, you may lose the affected teeth. So it’s best to leave this sort of work to a dental professional trained in orthodontics.
4. Filing or cutting teeth to shape them
My teeth hurt just watching this video.
Cutting or filing teeth unnecessarily can expose the second, more sensitive tooth layer, called dentine, or potentially, the nerve and blood vessels inside the tooth. People undergoing this sort of procedure could experience anything from sensitive teeth through to a severe toothache that requires root canal treatment or tooth removal.
You may notice dentist drills spray water when cutting to protect your teeth from extreme heat damage. The drill in this video is dry with no water used to cool the heat produced during cutting.
It may also not be sterile. We like to have everything clean and sterile to prevent contaminated instruments used on one patient from potentially spreading an infection to another person.
Importantly, once you cut or file your teeth away, it’s gone forever. Unlike bone, hair or nails, our teeth don’t have the capacity to regrow.
5. DIY fillings
Many people on TikTok demonstrate filling cavities (holes) or replacing gaps between teeth with a material made from heated moulded plastic beads. DIY fillings can cause a lot of issues – I’ve seen this in my clinic first hand.
While we may make it look simple in dental surgeries, the science behind filling materials and how we make them stick to teeth to fill cavities is sophisticated.
Filling a cavity with the kind of material made from these beads will be as effective as using sticky tape on sand. Not to mention the cavity will continue to grow bigger underneath the untreated “filled” teeth.
I know it’s easy to say “see a dentist about that cavity” or “go to an orthodontist to fix that gap in your teeth you don’t like”, but it can be expensive to actually do these things. However if you end up requiring treatment to fix the issues caused at home, it may end up costing you much more.
So what’s the take-home message? Stick with the funny cat and dog videos on TikTok – they’re safer for your smile.
Arosha Weerakoon, Senior Lecturer and General Dentist, School of Dentistry, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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F*ck You Chaos – by Dominika Choroszko
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We’ve all read decluttering books. Some may even have decluttering books cluttering bookshelves. This one’s a little different, though:
Dominika Choroszko looks at assessing, decluttering, and subsequently organizing:
- Your home
- Your mind
- Your finances
In other words
- she starts off like Marie Kondo, and…
- phases through doing the jobs of Queer Eye’s “Fab Five”, before…
- sitting us down with some CBT worksheets, and…
- finally going through finances à la Martin Lewis.
By the time we’ve read the book, it’s as though Mary Poppins has breezed through our house, head, and bank account, leaving everything “practically perfect in every way”.
Of course, it’s on us to actually do the work, but as many of us struggle with “how” and the ever-dreaded “but where to begin”, Choroszko’s whirlwind impetus and precision guidance (many very direct practical steps to take) really grease the wheels of progress.
In short, this could be the book that kickstarts your next big “getting everything into better order” drive, with a clear step-by-step this-then-this-then-this linear process.
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