>> who spend 1-2h per day (exercising?) outside might just imply a proxy for a healthy lifestyle. Try living in the north. Being outside, exercising, and sunl

>> who spend 1-2h per day (exercising?) outside might just imply a proxy for a healthy lifestyle. Try living in the north. Being outside, exercising, and sunlight exposure are three unrelated activities for at least six months of the year. Vitamin D supplements are the only way short of tanning lamps.