https://www.valterlongo.com/wp-content/uploads/2018/02/international-business-times-logo.jpg310384Valter Longohttps://valterlongo.com/wp-content/uploads/2019/09/prof-valter-longo.pngValter Longo2015-06-19 14:41:582020-07-24 07:46:30Five-Day 'Fasting Diet' Can Slow Down Aging: Study