Weekend Link Love – Edition 447

weekend_linklove in-lineRESEARCH OF THE WEEK

Exposure to common flame retardants may increase the risk of thyroid cancer.

Maple syrup extract enhances antibiotic efficacy.

Sex differences in brain structure.

After Tennessee shut down two nuclear plants and coal burning picked up the slack, infant health in the immediate vicinity suffered.

There’s no strong evidence that smartphones have lasting effects on how we think.

But just having one in the same room as you impairs your cognitive capacity.

Age isn’t an excuse. You can be 83 and still lift heavy and make gains.

Delaying the release of junk food from vending machines causes consumers to make healthier choices.

Linus Pauling’s smiling in his grave.

A successful reintroduction of the American chestnut would be a boon to wildlife.

Talking to preschoolers about their past and future selves helps them make better choices.


Episode 163: Dr. Gary Foresman: Host Elle Russ chats with Dr. Gary Foresman about hyperthyroidism.

Each week, select Mark’s Daily Apple blog posts are prepared as Primal Blueprint Podcasts. Need to catch up on reading, but don’t have the time? Prefer to listen to articles while on the go? Check out the new blog post podcasts below, and subscribe to the Primal Blueprint Podcast here so you never miss an episode.


Why some people are choosing to eat at the hospital.

Is there such a thing as too many polyphenols?

How and why dolphins throw octopuses around before eating them.

How deep should you squat? It depends.


Why even non-diabetics should consider wearing a continuous glucose monitor.

Tree songs.

Rising carbon dioxide is greening the planet.


Without anyone really noticing, the alternative health sphere has revolutionized the way most people eat.

A huge competitive advantage for the Mongols was their meat-and-milk-rich diet.

The first cyborg.

20 badass hikes.


Contest I have to share: Enter to win $100 to spend on Pura Vida bracelets along with 2 free canisters of the new PRIMAL KITCHEN® Collagen Fuel shake mix. You can also get 20% off your Pura Vida orders by using the code PRIMALKITCHEN20 at checkout.

Stat that blew my mind: Half of Americans are only responsible for 3% of health care spending.

Epigenetics study I found fascinating: Harms of blue light at night passed down to offspring.

Health paradox I’ve often wondered about: The toddler paradox.

Even though I missed April 1st: I’m getting a few of these for the office.


  • If you absolutely must have bread and you’re very low carb, try keto bread..
  • St. Patrick’s Day has come and gone, but paleo Irish stew remains a good choice.


One year ago (Apr 9– Apr 15)


Make sure you drink it, though. Resist that strange compulsion so many have to shoot it up your colon.

“Well, there goes my weekend…”

Mike S.

About the Author

Mark Sisson is the founder of Mark’s Daily Apple, godfather to the Primal food and lifestyle movement, and the New York Times bestselling author of The Keto Reset Diet. His latest book is Keto for Life, where he discusses how he combines the keto diet with a Primal lifestyle for optimal health and longevity. Mark is the author of numerous other books as well, including The Primal Blueprint, which was credited with turbocharging the growth of the primal/paleo movement back in 2009. After spending three decades researching and educating folks on why food is the key component to achieving and maintaining optimal wellness, Mark launched Primal Kitchen, a real-food company that creates Primal/paleo, keto, and Whole30-friendly kitchen staples.

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19 thoughts on “Weekend Link Love – Edition 447”

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  1. I live in Tennessee, and I’m not crazy about coal (although my electric bill is considerably cheaper with coal then with nuclear) but we shouldn’t pretend nuclear energy is any safer. In fact it’s worse. Chernobyl won’t be habitable for like another thousand or so years, so this stuff isn’t a joke. Nuclear energy should’ve never been manipulated and used by man to begin with. As for coal it’s cheap dirty energy however it doesn’t put every living thing at risk for extinction. Personally I’m under the opinion that coal could be slowly ushered out for things like solar and geothermal, and probably should. But getting down to brass tacks we’re not attacking coal because it’s coal, coal is being attacked because it’s part of politics. The new presidential administration’s agenda includes coal, so the other side of politics is doing everything they can to undermine the new agenda.

    1. I agree with your comment regarding coal versus nuclear power. One of the main problems with nuclear plants, aside from the very real risk of extinction, is that there are no satisfactory ways to dispose of nuclear waste. Every conceivable method of disposal comes with significant downsides.

    2. How about converting to thorium reactors? The energy generation process isn’t the problem. We just picked a crappy fuel.

    3. “But getting down to brass tacks we’re not attacking coal because it’s coal, coal is being attacked because it’s part of politics.” < I don't know about all that. I'm pretty sure people are pissed about coal because of the pollution it releases, and the massive amount of environmental degradation it does. We aren't separate from the environment.Everything every species ever does from farting to blowing up mountain tops and destroying river systems stays here. Chemicals do not disappear, pollution and environment degradation does not disappear, and by the way neither do the many health problems that coal miners come by as well as workers rights abuses they have and continue to endure. It doesn't go away. It lasts..forever, and the generations before are directly responsible for the human damage we must all now live with, amongst, and pay for with our time (money) and in some cases our lives. I personally, am very down with free education for all but the current priority should be for people whose jobs will go away with robotics, automation, exportation, and a free market and I am more than happy to pay for it out my pocket instead of paying the military to sit on their thumbs and spin all over the planet.

      Also, "The new presidential administration’s agenda includes coal, so the other side of politics is doing everything they can to undermine the new agenda" <this is dangerous because it stops conversations in their tracks by projecting your personal assumptions upon other people without actually asking them their own opinions. So in essence, it causes you to judge people by your biases of them versus by their own opinions and actions which is both illogical and a shame.

      1. Kelly, your rant doesn’t seem to have much of a point. What are you advocating?

    4. Nobody is really attacking coal. Besides being filthy, coal is just too expensive to mine and transport. Natural gas is cheaper and now wind and solar are about equal to and soon to surpass natural gas in price. Coal has been dying out for decades. It’s been years since a new coal powered plant has been built. Coal isn’t cost-effective and barring some unexpected change, it’s going to disappear. Its not politics, it’s the free-market.

    5. You really ought to watch Pandora’s Box. I wish we would stop acting as if a technology that was imperfect decades ago has no ability to be improved and made remarkably safe, in fact. Nuclear is our only option for replacing fossil fuels at this point in time. Solar and wind and geothermal will all cleanly supply a small portion of our energy needs. But with current technology there is no way they can meet worldwide energy demand. Only nuclear could eliminate our reliance on these dirty fuels that sicken and kill people.

  2. Thanks to the badass hikes article, I now have yet another reason to make continuous trips out the the west coast, even if some of them are a long time off for me. Those pictures are absolutely breathtaking!

  3. At my former employer, there were 16 people out of ~800 (according to the HR benefits lady) who accounted for about 60% of the health plan’s claims.
    If I had to guess, I didn’t say most of that was for cancer treatment, organ transplants due to failure, and complications from poorly-managed diabetes. Maybe a baby or two in the NNICU too.

    1. Like many people, I have excellent health insurance that I rarely use. I don’t like doctors, medical procedures, or hospitals, and I avoid them as much as I possibly can. I’m also well aware that the money I pay for insurance–that I don’t use–goes to help others, but that’s okay. I just chalk it up as a form of charity that I myself might need some day.

    2. To be fair, there are quite a few of us who are “expensive” to keep alive, but not due to disregard of our health and/or poor choices. As a Type 1 diabetic, I am probably an expensive addition to a health care plan because, in order to maintain optimal control, I utilize a CGM ($2,800 out of pocket annual expense to me before insurance coverage), test strips (you still have to prick your finger to calibrate your CGM), insulin pump supplies, and of course INSULIN! I was raised by a health-nut mother (before it was cool) and have always prioritized my health – i.e. I’m not a fat slob sitting around eating up the charitable insurance dollars of “healthy” people because I just can’t be bothered to put the twinkie down. I have blood that tests like that of a non-diabetic. Also, not sure “charity” is a fair descriptor of a “healthy” person paying their premiums. It’s insurance not charity. It is my fear that the majority paints the minority (i.e. those of us with auto-immune diseases that do NOT have a cure – eating Primal won’t cure Type 1 – it will help with managing it, but it will NOT cure it) with some broad brush of “unhealthy” and therefore eventually advocate for exclusion from full coverage. High healthcare cost does not always indicate poor health…unless you’d like to argue for a pure “survival of the fittest” society.

  4. Drives me nuts that doctors are actually worried about possible effects of wearing a glucose monitor, when they’ll prescribe all sorts of medications without a second thought.

  5. I’d like to have more time to type a comment but I have to leave here soon – was given like a few minutes for sharing this revelation I discovered a while ago (I’m guessing I’m not the first) and kept forgetting to mention here, and this is the first access I’ve had to the internet for posting comments in a while.
    Anyway I figured out a mathematical property trying to discern how many chin/pull-ups that I did in a day institutionalized in a one way top to bottom pyramid scheme: 55 in total = 10,9,8 so on down to 1 but the last couple sets were like a few each or something, still the total equaled the same as if I did less of one each time starting from 10.
    So here it is:
    Take any whole positive number and add to it twice the sum of every preceding whole positive number and you get the top number’s square. For example 1 = 1^2
    2 = 1+2+1 = 2^2
    tangent, so on to infinity.

  6. That healthcare article was certainly thought provoking. Can we just address the fact that comparing health insurance to car or homeowner’s insurance is bullshit though? With car and homeowner’s insurance, there is so little you can do to prevent an accident. You can be the best driver in the world and still get t-boned by a drunk driver or come to your parked car to find yourself a victim of a hit and run. It’s typically crappy luck that ends up having a person file a claim. Hell, if you get in too many accidents (as in, you are a bad driver), you won’t be able to purchase insurance!

    With health insurance, a healthy person is aware of any pre-existing conditions (maybe something slight, like myopia), so they know what they will reliably need it for. Other than that, there is so much we can do to keep ourselves from needing access to regular healthcare (including prescription coverage). Obviously freak accidents do happen, but the article did not make it sound like the bulk of healthcare costs are coming from people breaking their clavicle in a skiing accident or a deep cut that needs stitches when you got a little crazy with the Julienning. To act as if one should have to pay into a system that is fueled by assuming we’re going to get sick at one point, when we are healthy, just feeds America’s gross, apathetic attitude about health–that disease and malfunction are inevitable and normal.

  7. Loved the avocado oil post… I remember that one from last year. I was using avocado oil years ago after discovering it in a little gourmet shop in NYC. At the time, I had no idea that it was doing anything for me, I just loved the flavor. Now it has become a staple in my kitchen for roasting veggies and drizzling on salads. And I’m dying to try the keto bread. I can honestly say I don’t miss bread much, but this looks so light and fluffy that I think I’m gong to go for it!

  8. Mark – Fire retardent chemicals is a hot topic in the fire-fighting community. Here in San Francisco, cancers directly linked to exposures to the by-products of burning furniture are alarmingly high. Check out the movie “Toxic Hot Seat” [HBO] when you have some free time. Pretty scary stuff that applies to the entire community, not just fire-fighters.