Quote:
Originally Posted by
hoozah 
what does that have to do with anything
Quote:
Originally Posted by
thewho13
It's kinda backwards logic to me. It should read like this instead:
Stop working out; acquire blubber:
knits, cold, hemorrhaging $$$.
Note that there's a difference between
being cold and
feeling cold.
Fatties are more insulated and lose heat less easily, but that doesn't mean their bodies don't function in the same way that ours do. When it's cold, your body conserves heat by reducing blood flow to the extremities, which is why your hands and feet get cold. It makes you
feel cold, but it stops your core temperature from
being cold. The opposite happens when it's warm, and you also sweat.
A byproduct of using stored chemical energy for mechanical movement (=exercise) is heat. To get rid of this excess heat, your body increases circulation to the extremities, effectively acting like a radiator (increased surface area). You also sweat. The increased circulation to the extremities that happens when you exercise helps you
feel warmer. Again, your core temperature stays the same.
But this doesn't make you feel warmer when not exercising, you say?
there's a couple of things at play:
1. Exercise makes me hungrier. more energy to burn. More energy utilised in digesting the food. -->more heat
2. People often go on about how exercise increases your metabolism after exercise. IMO, it's more a case of increased demand for energy to repair muscle. Again, this makes heat as a by product.
IME when I exercise regularly I feel the cold less.