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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Tag: hormones

Dear Mark: Obesogens, Tots Who Hate Veggies, and Pregnancy Recovery

For today’s edition of Dear Mark, I’ve got three topics for you. First are the obesogens, those endocrine-disrupting chemicals that permeate our environment, our foods, our consumer products, and even our bodies. They sound scary and terrible, but how much should we be worrying about them? Next up is the tot who hates his veggies, as classic a trope as any other. Should we be force feeding these kids broccoli, collard greens, and butternut squash at all costs? Or should we take a more laissez faire approach and let them develop their tastes on their own? Finally, I discuss the importance of proper pregnancy recovery, especially in regards to lifting heavy (and not so heavy but extremely wiggly) things.

Let’s go…

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Dear Mark: Can’t Squat, Please Help; Plus, High CRP, No Symptoms, and Glutathione

In this week’s edition of “Dear Mark,” I answer two reader emails that end up being more like three questions. First, I try to help out Alex, who’s having trouble reaching full depth in the Grok squat without falling over backwards. This is a common issue, believe it or not, and luckily there are some pretty simple fixes that people can try. In my response, I explain why he might be toppling over and what he can do to fix it. After that, I answer a question about C-reactive protein, the “inflammation” marker. One reader is feeling great and sitting at an ideal body weight, but a recent blood test in which CRP was elevated has worried her. She wants to know what she can do about it, so I explain why it might be elevated, why it might not be an issue, why it might be one, and what she can do to boost glutathione, which her doctor recommended she increase.

Let’s go:

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Boxers or Briefs?

Believe it or not, it’s a question I get fairly often: “Grok didn’t wear tighty-whities. Should I?”

From time to time, I like to have some fun and expand the scope of this blog beyond the regular topics. Health and wellness, after all, come down to far more than just diet and exercise (and sleep and sun and stress, for that matter). So I’ve written about everything from the benefits of squat toilets, going poo-less, and stand-up workstations to the dangers of excessive sitting, nighttime light exposure, and passive living. Today, I’m going to branch out again. Today, I’ll attempt to answer what sages, wise men, gurus, and guys sitting around in gym locker rooms could not: boxers or briefs (or nothing at all)? So fill your cup and let’s dig in.

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Dear Mark: Does Eating a Low Carb Diet Cause Insulin Resistance?

Despite all the success you might have had with the Primal way of life, doubts can still nag at you. Maybe it’s something you read, or something someone said to you, or a disapproving glance or offhand comment from a person you otherwise respect, but it’s pretty common when you’re doing something, like giving up grains, avoiding processed food, or eating animal fat, that challenges deeply-and-widely held beliefs about health and wellness. It doesn’t really even matter that you’re losing weight or seem to be thriving; you may still have questions. That’s healthy and smart, and it’s totally natural.

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Gender Differences in Fat Metabolism

A few months ago, I addressed the role gender plays in how we respond to intermittent fasting. That post sparked a great discussion, and I’ve since received a fair number of emails from readers eager to learn other ways in which gender plays a role in our health and nutrition. One email in particular set me off on a round of research. So, a hat tip to you, Winifred, for giving me something to think, learn, and write about. I hope everyone finds it to be helpful.

As you may know, women and men store and metabolize fat differently from each other, and a 2008 paper (PDF) reviewed the evolutionary reasons for these differences. Here’s a summary of their findings and few other noteworthy factoids:

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Dear Mark: Coffee and Insulin, Fat and Post-Workout Meals

In today’s edition of Dear Mark, I cover two topics near and dear to many of your hearts. First, I discuss the interaction between coffee intake and insulin. Does coffee stimulate its secretion? Does it impair insulin’s function, or our body’s reaction to it? Find out how you should approach coffee on a Primal Blueprint eating plan. Then, I explore the suitability of dietary fat in the post-workout meal. Does it belong? Should you be stocking skim milk, de-fatted chicken breast, non-fat yogurt, and cartons of egg whites for your post-workout meals? If you’ve just lifted something heavy, should you therefore shun the yolks and fear the fat for the rest of the day? Find out below.

Let’s go.

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Is Wheat Addictive?

Within the Primal/paleo community and elsewhere, it’s often stated offhandedly that wheat is addictive. And absolutely, wheat for many people feels like something they could never give up. I hear it all the time: “I couldn’t live without bread.” “What would I do without cereal, dinner rolls, toast, {insert your favorite grain-based food item here}.” And wheat is often the main culprit in the sugar/insulin rollercoaster that drives sugar-burners’ need to eat (more wheat) every few waking hours. But is wheat addictive in a different sense – as an opiate like heroin and other drugs? Today I take a look at the research and attempt to separate fact from fiction. What do we really know about wheat as an opiate? Let’s find out…

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Dear Mark: Leptin Resets, Cold Thermogenesis, and Safe Starches?

Before we get to the topics du jour I’d like to express my appreciation to everyone that participated in last week’s “Dear Readers” comment board. As I said, Mark’s Daily Apple, my books, and what I do is constantly informed by your thoughts and ideas. In other words, I couldn’t do this without you, so thank you for your feedback.

My team and I have compiled all of your ideas and have begun laying out a plan to give you what you want, and to reach the largest number of people possible. We’ll be checking things off the list in coming months, so stay tuned! Now on to today’s article…

From cruise ships to tweets to ice baths to supposedly hacked social media accounts, Dr. Jack Kruse the man is nothing if not controversial. But what about his ideas – do they have any merit? That’s what many of my readers have been wondering, along with how I feel about them. I’ve remained pretty silent on this matter, because Jack was doing his thing and apparently helping a lot of people in the process. I was doing mine and helping people in my own way. And all was well. Now, though, the questions are coming in droves, and I can’t really ignore them any longer.

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5 Primal Superfoods for Fertility and Pregnancy

This is a guest post from Chris Kresser of ChrisKresser.com.

As a clinician with a special interest in fertility and pregnancy nutrition, two of the most common questions my patients ask are:

Is a Paleo/Primal Blueprint diet safe during pregnancy?
What are the most important foods to eat for boosting fertility and ensuring a healthy pregnancy?

I’m going to answer these questions in this article. But before I do, let’s first take a moment to discuss the importance of proper nutrition for fertility and pregnancy.

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Dear Mark: Dehydrated Vegetables, Cooked Versus Raw, and Premature Graying and Copper

Vegetables can be hard enough to work into our diet without other factors making it even more difficult. Either we’re stuck with nutrient-sparse, weeks-old produce that has lost all semblance of flavor (but it’s certainly affordable!), or we’re inundated with a countertop full of beautiful vegetation straight from the farmers’ market that we can’t hope to consume in time. You think convincing a ten year old to eat a plate of fresh sauteed kale is hard? Try getting a ten year old to eat a plate of sauteed withered kale that’s been sitting in the fridge for a week. And what about cooked vegetables versus raw? Some say that raw produce is the only way to eat it, that if you cook a carrot you’re rendering its nutritional content null and void. Is it really that dire? Does it matter that much? Find out the answers to these questions, plus one on whether or not copper deficiency can trigger premature gray hairs, in this week’s edition of Dear Mark.

Let’s go.

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