Many people are looking for a way to live as long as they possibly can. The fear of death is one that haunts nearly every person. If you are looking to prolong your time here on this Earth, some advice has been handed to you. These are the oldest living humans...and they have some secrets to share. 1. Laugh. allday 108-year-old Alice Herz-Sommer says the key to long life is positivity. She had a twin sister that died at age 70 because she was a pessimistic, crabby person. 2. Eat well and wake up early. allday Sakari Momoi, the oldest...