Step on a bathroom scale and it gives you one number. That number can be useful. But it cannot tell you how much muscle you have, how strong you are, where your body stores fat, how well your cardiovascular system functions, what your blood pressure looks like, or whether your metabolic health is improving. And one particularly important thing it cannot tell you is how much visceral fat you carry. That's worth understanding because all body fat is not physiologically identica

Walk into almost any modern recovery facility and you’re likely to hear some version of the same advice: Get hot. Get cold. Repeat. The explanation often sounds convincing. Heat causes your blood vessels to expand. Cold causes them to constrict. Alternating between the two supposedly creates a powerful “vascular pump” that improves circulation, flushes metabolic waste, reduces inflammation, accelerates recovery, floods the brain with dopamine and ultimately helps you sleep be