Strenuous exercise can trigger the "fight or flight" response in the sympathetic nervous system. When this is triggered, it has many effects including inhibiting digestion. It is thought that when this happens, you feel less hungry because blood flow is directed away from the digestive tract to other organs.
Personally for me, if I start off a workout while hungry, my hunger goes away during the workout. Usually it's not until I've cooled down that I start feeling hungry again.
Fitness Minutes: (15,905)
9,717 7/24/12 7:09 P
It happens to a lot of people, yes. It usually has the opposite effect on me, but I've heard of it with other people.
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3,526 7/24/12 7:09 P
I don't think it is unusual. I don't usually get hungry right after a workout either. In this hot weather, I don't get hungry at all.
I typically walk/jog the 2.6 mile trail next to my work on my lunch break. I have tried having a small snack about an hour or two before lunch, then walk/jogging the trail first thing on my lunch break, and then eating my lunch afterwards.
I am usually not very hungry after my walk/jog (even if I had been prior to working out), but if I eat before working out then it upsets my stomach. Is this normal to lose your appetite after exercising?
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