4 ms·

I wonder if it's whatever gives you that runner's high... Stimulants of all kinds suppress appetite.

• FollowingTheDao 4y ago
  It's not. It is probably the thing that gets rid of the runners high actually. Since "Phenylalanine is a precursor for tyrosine, the monoamine neurotransmitters dopamine, norepinephrine (noradrenaline), epinephrine (adrenaline), and the skin pigment melanin..." combining it with lactate destroys this adrenaline high.