Moshe Rute smokes marijuana at the Hadarim nursing home in Kibutz Naan, Israel, in early March. The Israeli government and a private company are distributing cannabis for medicinal purposes to more than 1,800 people in Israel. Uriel Sinai/Getty Images hide caption

itoggle caption Uriel Sinai/Getty Images

Doctors are treating sleep apnea with a type of robotic surgery typically used to remove cancerous tumors at the back of the throat. Courtesy of MayoClinic.org hide caption

itoggle caption Courtesy of MayoClinic.org