You went to work, you squeezed in a workout, you went ran errands, then went home, cooked dinner, and then went to sleep. You slept for 8 hours (if you were lucky), and gave your body a break. That was...
The science of sleep is far more theoretical than you may think. Theories remain unproven for why we evolved to sleep. In fact, part of the reason we humans skip out on needed shut-eye is because our bodies can adapt to...