Most of the low-carbers I know end up experimenting with intermittent fasting at some point in their...
It seems every “keto for women” forum abounds with stories about menstrual cycles gone wild in the first few months of keto. Irregular cycles, breakthrough bleeding, and periods lasting much longer than normal are common complaints. Sometimes these stories are cited as evidence that keto isn’t good for women, at least not premenopausal women, and that we need carbs for healthy hormones. Yet, many women don’t notice any changes in their menstrual cycles at all, while others report improvement in PMS symptoms and cycle regularity from the get-go.
What gives? Why do some women’s cycles apparently become wacky when they start keto, while others feel like keto is the key to period bliss? Can keto “mess up” the menstrual cycle?Read More
The relationship between stress and carbohydrates is confusing, with seemingly contradictory arguments bouncing around the online health sphere.
There are those who say high-carb diets cause stress, and that eating more fat and fewer carbs is the solution.
There are those who say high-fat diets increase stress and eating carbs ameliorates it.
Who’s right? They can’t both be right, can they?
You’d be surprised.
Let’s dig into four common carb questions and assertions.Read More
For today’s edition of Dear Mark, I’m answering a couple of questions from the comment sections of the last couple weeks. First, it’s been established that fasting and exercise both raise growth hormone. What about fasted exercise—does that have an even stronger effect? And what about continuing to fast after your fasted workout? Then, I discuss the inevitability (or not) of wear and tear on the arteries from blood flow-induced shear stress. Is shear stress “bad,” or do certain factors make it worse?
Let’s dig in.Read More
It has many names and monikers.
Age-related testosterone deficiency.
Manopause, my personal favorite.
Although it isn’t as sharply defined as female menopause, male menopause is a catch-all for the gradual cascade of mental and physical health issues that men face as they approach and pass middle age and their testosterone drops. Wherever possible, I will insert “man” puns into the symptoms and conditions. Consider yourself warned.Read More
In today’s edition of Dear Mark, I’m talking about pregnenolone, the “master hormone.” Most of the hormones we talk about, like testosterone, estrogen, and cortisol, all have pregnenolone as their precursor hormone. What can happen when pregnenolone goes too low? Can taking pregnenolone solve any problems? Is menopause actually a pregnenolone deficiency?
Let’s find out….Read More
A Primal woman’s first reaction to the prospect of taking synthetic hormone replacements for menopause? Probably a healthy dose of skepticism. We in the ancestral health community, after all, tend to view pharmaceuticals as a last resort—interventions that are overprescribed by vested interests, create their own set of side effects, and may even do more harm than good. To suggest that we “need” this or that prescription raises our hackles.
Besides, it’s not like menopause is a product of modernity or an aberration our ancestors never experienced; it’s a physiological stage that evolution has protected and selected in humans. It’s perfectly natural. Rather than the debilitating, miserable experience many women report having, menopause should be easier. Graceful, even. But it often isn’t.Read More
Back in June during the 21-Day Challenge, I asked you to share questions you had about my personal health routine, and I’m looking forward to answering those in the coming months. We talk a lot about generalities here, and for good reason. Research can and should drive principle, but oftentimes while we wait around for it (or have questions about the overall validity of what’s out there), n=1 self-experimentation can tell us a lot.
Over the years, I’ve gathered ideas for that experimentation by reading the studies and listening to others talk about the choices they make. All of it together has—and continues to—inform the routine I follow to live the life I want. Among the many questions you sent were inquiries about my supplement regimen. Today I’m sharing what I take, when I take it, and why.Read More
One of the biggest mistakes I see among people who exercise is they forget this core truth: we get fitter not from training, but from recovering from training. This doesn’t just occur in beginners either. Some of the most experienced, hardest-charging athletes I know fail to heed the importance of recovery. Hell, the reason my endurance training destroyed my life and inadvertently set the stage for creation of the Primal Blueprint was that I didn’t grasp the concept of recovery. I just piled on the miles, thinking the more the merrier.
It didn’t work.Read More
Even after I fixed my diet, ditched the chronic cardio, and cleaned up my overall lifestyle to be more in line with our evolutionary upbringing, one big problem remained: my response to stress.
This had always been an issue for me. Part of it was that I kept a full plate at all times. Whether it was my training load, my businesses, my overall type A personality, stress was simply unavoidable, I thought.
How did I approach the situation and manage my stress differently over time?Read More
Insulin does a lot of important things for us. It pulls glucose from the blood and fritters it away into our cells to be burned for energy or stored as glycogen. It prevents hyperglycemic toxicity to neurons, pancreatic cells, the arterial walls and the generation of excessive levels of reactive oxygen species. It even promotes muscle protein synthesis and helps augment muscular hypertrophy, especially following resistance training. Clearly, we need insulin. Without it, we’d die, as type 1 diabetics readily do without an exogenous source.
But this process goes off the rails when our cells become resistant to the effect of insulin over time. We secrete too much. Our levels remain elevated. It becomes harder to burn body fat. In fact, we end up in even more efficient fat storage mode.
I’ve shared about nutritional means to enhance insulin sensitivity in the past. What about other non-dietary strategies?Read More