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Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Wearing sunscreen can block UVB rays, which the body ...

WEEK, JUST IN TIME FOR THE 4TH OF JULY. WELL, IN THIS MORNING’S WOMAN’S DOCTOR, WE ALL GET VITAMIN D FROM BEING IN THE SUN, BUT HOW MUCH DO WOMEN REALLY NEED? WOMEN AGES 30 TO 70 NEED ABOUT 600 ...