It is well established that eating disorders are more common in people who struggle with anxiety and/or depression. People tend to look at biological tendencies as destiny, but I never have. Knowing what your natural temperament is just gives you a starting point, an owner's manual. What you do with that is far more fluid:
"just because rumination has genetic roots doesn't mean it's inescapable...People can learn to stop these thought processes and have better emotional health."
"He suggests literally reserving 20 minutes a day to worry. If you can postpone worrying, you are exercising control over it, rather than letting it control you."