Eat to live and live to eat

Tanya is so fat that she might die. After a near miss she vows to lose weight. She does everything the nurses tell her to do, eats right and gets exercise. Even her husband is trying to help her. But nothing seems to work. Can she work out why she keeps gaining weight? And will she be able to accept the truth when she sees it? If she can’t then she will end up eating herself to death… or worse.