Daylight

: Exposure to sunlight triggers the release of serotonin , which helps you feel calm, focused, and happy.

In 1784, while serving as the American envoy to France, Benjamin Franklin published a satirical essay titled "An Economical Project" . daylight

: He calculated that if Parisians woke up with the sun, they would save millions of pounds of candle wax. : Exposure to sunlight triggers the release of