Meet Mark

Let me introduce myself. My name is Mark Sisson. I’m 63 years young. I live and work in Malibu, California. In a past life I was a professional marathoner and triathlete. Now my life goal is to help 100 million people get healthy. I started this blog in 2006 to empower people to take full responsibility for their own health and enjoyment of life by investigating, discussing, and critically rethinking everything we’ve assumed to be true about health and wellness...

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Category: Primal Lifestyle

10 Tips to Boost Your Serotonin

Serotonin is a major regulator of mood and depression risk. These are important, vital roles, to be sure. Your mood describes how you experience and interpret the world. If it’s consistently bad, you’regoing to have a rough time. Yet, serotonin is much more than the “feel-good hormone.” It also influences sexual desire and helps us remember. It’s the precursor to melatonin, the neurotransmitter that allows us to sleep.

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Dear Mark: Roundup Safety and Polyamory to Monogamy

For today’s edition of Dear Mark, I’m covering two entirely different topics. The first is a fairly familiar topic to readers of this blog—whether a popular pesticide is actually dangerous or not. The reader asking the question thinks the data is clear, and Roundup is safe, but I’m not so sure. Second, I discuss the evolutionary underpinnings of our transition from polyamory to monogamy.

Let’s go:

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Dear Mark: Erythritol and Weight Gain, Chicken Liver and Arsenic, and Tips for Laptops in the Sun

For today’s edition of Dear Mark, I’m answering three questions from readers. First, is erythritol, one of the more common sugar alcohols, linked to weight gain? According to a new study, it is. What should we make of the research? Next, I talk a good game about chicken livers, but there’s a new study that seems to show they’re big repositories of arsenic. Should you stop eating chicken liver? And finally, I give a few tips for improving screen clarity when working outside on your laptop in full sun.

Let’s go:

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What’s the Difference Between Primal and Paleo?

The paleo diet and Primal Blueprint way of eating (a.k.a. Primal) are both based on similar evolutionary science. The story goes something like this. Our modern Western diet bears little resemblance to the eating habits of early humans throughout several 100,000 years of evolutionary history. Instead, since the Agricultural Revolution some mere 10,000 years ago, we’ve adopted a nutritional regime to which our physiology is poorly adapted. When the basics of our diet return to the patterns of our pre-agricultural ancestors, we work with, instead of against, our physiology. More simply: eat as our ancestors ate, and we’ll be healthier for it.

The paleo diet and Primal Blueprint both recommend limiting carb intake (especially grains) to only as many as you require for performance, eating more protein and fat, and including lots of veggies as a base. But in the midst of this common ground are some key differences.

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10 Actions for an Anti-Stress Protocol

It almost goes without saying: Stress is at an all-time high. Not the kind of major traumatic stress we see elsewhere, sure. At least in the Western world, there aren’t any horrific sectarian conflicts scouring the landscape and generations to come. Our infrastructure is built to withstand most natural disasters. Our world is safe and predictable and sterile. But we’re stressed out just the same, afflicted with the kind of pernicious, low-level, unending stress that drives people into substance abuse, that promotes depression and suicide and broken relationships. The type that never quits. The kind you just want to drown out with Netflix and Facebook and anything at all to take your mind off the churning within.

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Dear Mark: Testosterone and Marriage, Dangerous Gluten-Free Diets

For today’s edition of Dear Mark, I’m answering two questions from readers. The first one concerns the reduction in testosterone men experience with marriage. Is it a feature? A flaw? Is it inevitable? After that, I get into a pair of new studies that question the safety of gluten-free diets in the absence of celiac disease. Is your gluten-free diet going to kill you?

Let’s go:

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