In today’s Dear Mark I discuss my favorite seaweed supplement, kelp granules, which aren’t really a supplement in the classic sense, but more of a food that you can treat as a supplement. Next, I give my thoughts on the latest study to suggest that an overweight BMI confers the lowest mortality risk in people. Finally, I handle a question from a parent currently trying to juggle sleep with exercise who wonders which to choose. It’s a tough question, to be sure, but I give my best attempt at a helpful, realistic answer.
Let’s get to it:
Sleep is the cousin of death, wise men have said. Strange thought it may seem, though, avoiding this sometimes annoyingly-insistent-that-you-hang-out cousin will actually bring you closer to an early death. It’s not a pleasant thing to consider, but it’s the truth; bad sleep is associated strongly with early mortality, being overweight, having metabolic syndrome, and getting cancer. I’ve said it, your doctor says it, and anyone who’s ever had a bad night’s sleep and felt like death the next day will say it: sleep is absolutely essential to happiness, health, and longevity. On the positive side, there’s nothing quite so pleasurable as a good night’s sleep, from the initial application of one’s head to the pillow, to the insanely vivid dream-visions that descend upon you in the midst of it, to the peerless happiness and boundless energy you feel upon waking. Sleep’s the best, so you want to get it, and get it good.
You know it, of course. I harp on it enough. And chances are, you’re doing your part to get good sleep. But what if you can’t? What if sleep is bad, or inadequate, or unfulfilling? What might be causing it? Let’s find out.
Is there any food more lauded and feared, beloved and bewitching, hated and praised – all at the same time – than bacon? Have full-fledged Internet subcultures sprung up around any other animal product? Does any food but bacon inspire obvious longing masquerading as righteous rancor and vitriol? And yet no matter how much has been written about bacon, questions inevitably and indefinitely remain. Case in point: today’s round of questions. That’s right, we have two bacon-related questions and one unrelated question about noise therapy and sleep. I’ve got to say – this really warms my heart. Not only are you trying to find pastured bacon and wondering about what the pork you eat is being fed, you’re also trying to figure out how to sleep better. How much more Primal can you get?
You guys ready for another personal experiment? I hope so. Even if don’t think you’re ready to take something on, I’m confident you’ll be able to handle this one, because it’s relatively simple, intuitive, and easy. It’s also something I’ve been discussing for a couple years now, so you’re most likely familiar and comfortable with the concept. But most importantly, today’s experiment is a gentle one that requires very little commitment. No jumping in freezing cold water, no drastic changes to your sleeping schedule. All I’m asking you to do is experiment with nighttime yellow light exposure.
Remember how I wrote about nighttime exposure to blue light affecting melatonin secretion and, subsequently, sleep quality and duration way back when? Yeah, that. In case you didn’t read it, I’ll give a quick explanation:
It’s time for another edition of “How to Conduct a Personal Experiment.” Last week, it was the cold water plunge. Today, we’re going to talk about running a biphasic sleep experiment. First, though, I’d like to know: how are the cold plunges going? Are they, well, cold? More importantly, did you have any difficulties setting up the experiment, identifying variables, and choosing what to measure and track? This whole personal experiment stuff is likely new to most of you, and while there’s no real “wrong” way to go about it, there will be some initial difficulties. Be sure to keep us posted in the comment section.
Okay, on to the new experiment.
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