Basal metabolic rate accounts for 50-70% of daily energy expenditure and represents the energy cost of basic physiological functions while awake but at rest.

“we have our BMR which is about in terms of the energy outside of things and I guess I should Define that energy out is your total daily energy expenditure so all the energy you spend in a day that's your TDE we call it and the biggest portion of that is your BMR for most people now if you're an elite athlete who trains like six eight hours a day you can get to the point where your physical activity is actually greater than your BMR”

“now let's talk about the energy outside of things because this is way more complicated so there's different ways people have broken it down but essentially you have your your your BMR which is your basil metabolic rate and what that that's usually about 50 to 70% of the energy people expend per day and it the way I tell it is it's basically the cost of keeping the lights on and we would determine that if you were putting somebody in a metabolic chamber I believe that we don't require them to be sleeping but it's laying up laying there but being awake correct”