Evolution — or, “Death of the Nightowls.”
Conservation — or, “Cut down on your body’s electric bill.”
Restoration — or, “Clean up the mess you made.”
Brain plasticity — or, “The price of intelligence.”
Research suggests that a good night’s sleep might “reset” this connection so you can respond to challenges in better, more constructive ways.
Most importantly, your body’s “master clock,” which controls all your other internal clocks, resets when your eyes take in blue light.