There are just too many factors to give an easy clean answer to this question. To limit the problem, lets assume the individual is wearing 1 CLO of clothing in still dry air. Further, lets assume that this person has a surface area of 2 m (a little bigger than the typical male, but it makes the math easier). Finally, lets assume they can indefinitely produce ...
All chemical reactions including killing cancer cells with poisons occur at approximately twice the rate per ten degrees. So reducing the scalp by ten degrees while chemo is occurring will reduce the rate of poisoned hair follicles by half during the procedure.
A single meal can decrease the risk of hypothermia during a few km travel in severe cold. Consequently, it could also decrease the risk of frostbite, but lack of studies prevents making any reliable conclusions.
Dietary protein generates more heat than carbohydrates and these more than fat.
Proper hydration can contribute to prevention of ...