Sunblocks and Sunscreens – Helpful or Harmful?

In 1938, chemist Franz Greiter developed the first sun- screen, and in 1944 airman Benjamin Greene, who later became a pharmacist, developed his own version to protect soldiers fighting in the South Pacific from sunburn. Since then it’s been considered a necessity for anyone going out in the sun for any length of time. But is it doing more harm than good?