My health teacher was from Iran, he wrote the book You are … Twetch · October 17, 2020 My health teacher was from Iran, he wrote the book You are not Sick you are Thirsty. He showed that Allergies are caused by dehydration, that is usually caused by a low salt diet. https://www.youtube.com/watch?v=piY0a-b7zI0&t=111s