I am everywhere surrounded by friends and family sprinkling creatine onto their protein shakes and shoveling it into their mouths as they compulsively pump iron in an endless attempt to build muscle. The societal obsession with protein and muscle growth can be directly traced to Peter Attia, who in turn was influenced by a man…
The great thing about getting older is that you always have something to talk about with other old people at a dinner table—your medical problems. And now there’s something you can add to that list of hot discussion topics: sterile inflammaging–chronic, low-grade inflammation without an infectious trigger. It’s one of the constant companions of old…
Not a week goes by that I don’t get a question or an IG post or some Huberman / Rogansphere related podcast link about supplementing NAD. Often from the same individual actually. Is it worth spending your money to take NMN or NR or niacin or any one of the many varieties of this cofactor?…
I have occasionally complained about my mother in law’s bland cooking methods. Boiled this, steamed that. How about a sauté? How about frying something? And yet, she is aging gracefully and the scientific evidence has begun to justify her insipid cooking. A growing body of research shows that advanced glycation end products (AGEs) sit at…
Aging is often described as the slow accumulation of damage—oxidative stress, mitochondrial decline, epigenetic drift. But one of the most intriguing and increasingly central players in this process isn’t a metabolic byproduct or a failing repair system. It’s a piece of DNA that behaves like it still remembers being a virus. These sequences are called…
If we are to understand aging, the primary question is why should there be aging and death in the first place? Why is it almost universal in living organisms and what evolutionary purpose, if any, might aging and death serve? First let’s clarify that I don’t have any formal education in evolutionary biology, I think…
We have internal rhythms that align with the rotation of the planet. Most famously, there is the rhythmic secretion of melatonin at night and a spike of cortisol in the morning. These and myriad other oscillations are controlled by aptly named clock genes that are present in every cell of the body. Clock genes work…
The two popular theories that purport to explain the obesity pandemic are the carbohydrate insulin model and the standard model of energy balance. In Why Nature Wants Us to be Fat, nephrologist Richard Johnson bravely proposes another theory: the survival switch. In his formulation, nature has evolved a survival mechanism allowing organisms to rapidly gain weight…
Muscle is a metabolically active tissue that plays a central role in health and longevity. Beyond functional roles such as helping one get up from a chair, going up stairs and avoiding falls as we age, muscle accounts for 75% of glucose disposal and makes the greatest contribution to resting energy expenditure of any tissue…
The diagram below details how overfeeding will lead to the so-called metabolic syndrome, a cluster of conditions that are linked and can lead to vascular disease, stroke and heart attacks. The components of metabolic syndrome are hypertriglyceridemia, truncal obesity, hypertension, diabetes and low HDL. This diagram is a simplification, it elaborates an insulin-centric model, and…
