Plan A – endorphins
Plan B – adrenaline
Plan C – bar
Plan D – dinner
When you exercise, your body releases chemicals called
endorphins. These endorphins interact with the receptors in your brain that
reduce your perception of pain. Endorphins also trigger a positive feeling in
the body, similar to that of morphine.
The secretion of adrenaline is part of the human
'fight or flight' response to fear, panic, or perceived threat. Also known as
epinephrine.