For the first 90% of our evolution, humans ate diets containing less than a quarter teaspoon of salt a day. Why? Because we ate mostly plants. Since we went millions of years without salt shakers, our bodies evolved into......

Lasting for 3,000 years, ancient Egypt was one of the greatest ancient civilizations--with a vastly underestimated knowledge of medicine. They even had medical subspecialties. The pharaohs, for example, had access to dedicated physicians to be "guardian[s] of the royal......

Our epidemics of dietary disease have prompted a great deal of research into what humans are meant to eat for optimal health. In 1985, an influential article highlighted in my video The Problem With the Paleo Diet Argument was......

A new concept, called xenohormesis, has arisen to explain the mystery of why so many plant molecules interact with and modulate key regulators of our physiology in ways that are beneficial to our health (explained further in my video,......

Plants live the ultimate sedentary lifestyle--most of us usually think of plants more as objects than as organisms. Because plants can't move, they've had to evolve a whole other way to escape threats to their well-being. Plants can "sense......

In the beginning, Aristotle defined two forms of life on planet Earth: plants and animals. Two thousand years later, the light microscope was invented and we discovered tiny, single-celled organisms like amoebas. Then, the electron microscope was invented and......

Thanks to advances in modern medicine, we are living longer lives, but we're doing it by lengthening the morbidity phase. In other words, we live longer, but sicker, lives (see my video: Americans Are Live Longer, but Sicker Lives).......

A plant-based diet is thought to have played a significant role in human evolution and the consumption of whole plant foods and even just extracts have repeatedly been associated with a decreased risk of aging related diseases. And by......

So I went to the local meatpacker. I didn't really want to, and I probably could have asked someone else to do it. But it was for a nonvegan children's club (traditional dissection activity), and I figured I could......

Evolution devised an ingenious way to bond infant to mother: proteins in milk that break down into peptides that have opiate-like drug effects. But what if a breastfeeding mother is herself effectively suckling by still drinking milk into adulthood?......

And with seeing and being reminded comes…inspiration…each image of animals being treated with apathy in the most horrific manners…manners in which are impossible to imagine how a human could conceive of them-let alone implement and perpetuate them. And yet,......

And with seeing and being reminded comes…inspiration…each image of animals being treated with apathy in the most horrific manners…manners in which are impossible to imagine how a human could conceive of them-let alone implement and perpetuate them. And yet,......