Every week "The Top Twenty" brings you the first 20 minutes – give or take – of "The Hard Rock Lunchbox".

This week, DJ explains caffeine doesn't give you energy… it gives you a stress response.

Also on today's show: the war between right and wrong, 90-minute sleep cycles, intrinsic vs extrinsic motivation and MORE!

Music from: @CrashOvercast

This ain't your mom's lunch box. #onthebox

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