“Being out in the sun, we are starting to understand, can lower blood pressure, calm our immune system and even alter our mood. Even without such knowledge, most of us are instinctively drawn to sunlight because sitting in it just feels so great, and there may be a reason for that: when the sunlight hits our skin, our bodies release endorphins, the same 'feel good' hormones that produce a runner's high.” SunSunshineSunlightEndorphins Book:Chasing the Sun: The New Science of Sunlight and How it Shapes Our Bodies and Minds Source: Chasing the Sun: The New Science of Sunlight and How it Shapes Our Bodies and Minds