More so, sun gazing at sunrise helps signal your body with its timing and it allows you to get better sleep. I rarely ever wear one with the exception of driving on the road and there is glares like Carol (in the other comment) said. I work outdoor all the time and wear a hat if needed. Plus, I never use sun lotion as it's another alternative that completely blocks your ability to absorb sunlight properly. Look at all the paintings back in the 1700's and 1800's, they wear hats and roll up their sleeves. Sunglasses may be a nice fashion tread but it destroys your health.