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sun exposure

PositiveTip for

Avoiding Sun May Be as Dangerous as Smoking

Nonsmokers who avoid the sun have a similar risk for death as smokers!

Swedish researchers studied 30,000 women over 20 and found the nonsmokers who stayed out of the sun had a life expectancy similar to smokers with the highest sun exposure. The authors suggest that overexposure should be avoided, but underexposure may be more dangerous than people think. Exercise and lifestyle data were not considered and might have confounded these findings.

PositiveTip: Vitamin D is essential for good health, and appropriate sun exposure is an excellent way of getting it.

PositiveTip for

Double Benefit from Being Outdoors

Exercise outdoors improves vitamin D levels and fitness.

Regular exercise, both moderate and vigorous, contributes to healthy hearts. Harvard researchers have found those who do vigorous exercise for three or more hours per week reduce their heart attack risk by 22%. This study also suggests it may be due in part to exposure to sunshine and the resulting increased vitamin D levels.

PositiveTip: Enjoy the double benefit of outdoor physical activity: Higher vitamin D levels and better fitness!