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: Self-Experimentation

Why Fast? Part Seven – Q&A

By now, you should be caught up on all the benefits that fasting offers. By now, you’re likely either intrigued by the practice, strongly considering taking it up, or basking in the smug satisfaction that your longtime breakfast-skipping ways weren’t destroying your metabolism after all. But although I tried to cover just about everything I could in the last six posts of this fasting series (links at the bottom of this article), I apparently didn’t hit every angle, because I received a barrage of questions from readers via email and comments looking for clarifications, answers, and explanations. I can’t quite answer them all, but I did manage to put together a fairly representative selection of the most common and relevant ones, and today I’ll provide answers.

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Why Fast? Part Six – Choosing a Method

Assuming you’ve been keeping up with the series, you should be saying to yourself “Hey, maybe this fasting thing would be a cool thing to try out, and it might even make me healthier/live longer/lean out/lose weight/etc.,” which is a sufficiently extensive list of benefits, don’t you think? I could probably go on theorizing and speculating about all the reasons why you should consider intermittent fasting, but I’d rather move on to the implementation. Thinking about fasting, reading about fasting, and reciting the benefits of fasting are all pointless if you don’t know how to go about doing it.

First, let’s go over the different variations of fasting. I’ll give a quick rundown. Each involves not eating for a period of time, unsurprisingly.

A couple other rules that apply to all the given methods:

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Why Fast? Part Five – Exercise

In previous installments, I’ve discussed the powerful effect of fasting on weight loss, particularly with respect to adipose tissue. I’ve explained how intermittent bouts of going without food have been shown to increase cancer survival and resistance and improve patient and tumor response to chemotherapy, and I went over the considerable evidence suggesting that fasting can provide the life extending benefits of caloric restriction without the pain of restricting your calories day in, day out. And last week, I highlighted how fasting may have protective and therapeutic benefits to the brain.

As such you might be thinking that I only recommend fasting to the sedentary, the aged, and the infirm. Surely I wouldn’t go so far as to recommend to the active, the athletic, and the jacked that they engage in vigorous physical activity without having eaten a solid square meal beforehand – right? I mean, no good can come of a fasted training session, as the gym bros with the sweet ‘ceps are so quick to intone.

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Listening to Your Body

Question: what does your body feel like right now? Go ahead. Take an inventory. From the toes to the head, what’s going on in there at the present moment? How’s your back? How’s your stomach? Your head? How about muscles? Your energy level and mood? Is your thinking clear this morning? Good and bad, what signals are you getting? Beyond the here and now, what’s your body been trying to tell you lately? Any changes since beginning the Challenge? Most important of all perhaps – are you accustomed to listening to what your body has to say?

Everything about our culture, it seems, discourages us from doing just that. From the commercials insisting we don’t need to put up with that headache to the glorification of binge drinking, taking a body’s hint isn’t exactly at the top of most people’s list of talents or priorities. Why live with that pesky fever when you can simply beat it back with 1000 milligrams of extra strength head-in-the-sand? Indigestion from eating that second Big Mac today? Try some Pepcid AC.

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Why Self-Experimentation Matters

Self-experimentation is a term the online Primal community regularly bandies about. I’ve been meaning to write a post on the subject, and I figured the first week of this year’s Primal challenge would be the perfect spot to drop it. Because, after all, those who accept and undertake the 30-day Primal Blueprint Challenge will essentially be conducting a 30-day self-experiment on themselves. It won’t be your first self-experiment, nor will it be your last, but it may be your first chance at knowingly conducting one.

Yeah, we’re all lifetime self-experimenters, when you get down to it. From infancy onward, we conduct experiments – most of them totally informal – to understand how the world works and how to interact with it. A toddler trying avocado is testing whether it tastes good and nourishes, the teen using a cheesy pickup line is testing whether it gets the girl’s number, and the college freshman pulling an all-nighter before a midterm is testing whether she can party all quarter and still make grades. They’re all forays into the relative unknown, and they’re all crude, imperfect modes of self-experimentation, even though the experimenters probably aren’t consciously aware of any experiments being conducted. Life is full of these informal little tests.

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My Self-Experimentation and Transformation

Thanks to Richard Nikoley of Free the Animal for this Guest Post! Here is more anecdotal proof that a high fat diet coupled with intermittent fasting can improve body composition. If you’re interested to know more about Richard’s transformation visit his site, or simply ask him a question in the comment board where he’ll be fielding inquiries. Thanks, Richard!

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I’m a blogger with over two thousand posts under his belt going back five years this month, to November of 2003. And, until May of 2007, about 18 months ago, I was a big fat blogger — one usually filled with rage over politics and all sorts of other societal elements far removed from my direct control. The blog was supposed to be an outlet; but instead, I was a basket case of stress, with blood pressure consistently measuring 145-160 / 95-105, probably well on my way to some cardiac event or stroke within a decade. To make matters worse, I took prescription medication daily, both for gastric reflux (pretty predictable) and for sinus allergies I’d suffered from since my teen years.

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