Endorphins & tigers!: Exercise done earnestly triggers the production of endorphins--producing the adrenalin-like effect which you no doubt recognize into your workout. Physiologically, our bodies are geared toward "fight or flight"--not the digestion of food--when stressed by exercise; a throwback to survival while being attacked by saber-toothed tigers of old! no wonder you're not hungry, when you're the meal!
Answered 3/20/2015
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