Physiology and psychology cover, between them, the field of vital phenomena; they deal with the facts of life at large, and in particular with the facts of human life.
Bio: Vani Deva Hari, who blogs as the Food Babe, is an American author, activist, and affiliate marketer who criticizes the food industry. She started the Food Babe blog in 2011, and it received over 54 million views in 2014.