* sunshine
       Sunshine Actually Makes You Happy
       In a recent study, people reported more mental distress when the
       days were shorter and there was less sunshine.

--

Time Of Day And Fitness Goals: Why Working Out In The Morning Is Best For
Stress, Not Muscle Size

   Sep 10, 2015 10:52 AM By Lizette Borreli @lizcelineb
--
   getting injured at this time.

Improve Sleep and Reduce Stress: Morning Workout

   Setting up your alarm clock for early morning workouts can actually
   give you a good night’s sleep and reduce your stress levels. A 2011
   study published in the Journal of Strength and Conditioning Research
   tracked blood pressure levels and sleep patterns in participants
--
   day. The morning group spent up to 75 percent more time in the deep
   sleep stage at night. These early birds not only increased their
   cardiovascular health, but also decreased their stress and anxiety
   thanks to a good night’s sleep. Basically, the more deep sleep the body
   gets, the more time the body has to recuperate.