I don't know of any exercises for this goal. Personally, I think the goal should be to have one's channels fully open and to envision a fully healthy self and life.
For myself, I have started my exercises when inviting my master(s) to help to return to a completely healthy state. Sometimes asking that my wieght return to normal. At which point I visualize a very healthy me.
You are perfection.
Iam2 
