Any time people work out, they might feel good about themselves. However, after leaving the workout gym, they may feel hungry. Their body just exerted a lot of energy over a short period of time. Also, the person probably didn’t eat a large meal prior to working out. So, based on the time frame, the person hasn’t eaten a meal in a while.
Coupled with the fact that the person’s body used a lot of energy to conduct the workout, they may feel hungry. The body may feel that you have used up your energy and fluids through sweating and it needs something to replace that. Suggestions include to eat the right foods after a workout and even before. Eating a small meal that is healthy for you make stop or lessen the craving after a workout.