Sublime

“Metabolism slows down 90 percent after 30 minutes of sitting. The enzymes that move the bad fat from your arteries to your muscles, where

He and his colleagues noticed that heart attack patients often had both high fasting glucose levels and high triglycerides, as well as elevated blood pressure and abdominal obesity. The more of these boxes a patient checked, the greater their risk of cardiovascular disease. In the 1980s, Reaven labeled this collection of related disorders “Syndrome

of T4 to T3, etc.) doesn’t downshift from extended caloric restriction.

Metabolic switching is a shift from utilizing glucose for energy to fatty acid–derived ketones for energy. The act of going in and out of two fuel sources elicits a healing response. We currently have many popular examples of metabolic switching: ice plunges, hypoxic breathing rituals, and fasting.

When we engage in bouts of fasting or very-low-carb diets, our leptin levels are reduced—but this has the benefit of increasing the amount of leptin receptors in the hypothalamus. Thus, by fasting, we can regain leptin sensitivity, and by incorporating periodic high-carb, low-fat “refeeds,” we can keep our metabolism revving like a sixties muscle c

dramatically spiking caloric intake in this way once per week increases fat-loss by ensuring that your metabolic rate (thyroid function and conversion

Your thyroid (a butterfly-shaped gland located at the base of your neck) is best known for determining your basal metabolic rate.