You might want to think of simple exercises like push-up and sit-ups. Weight gain means you are not burning all the calories you intake so healthy eating may balance excess carbs or fat but if it still more than you use, BAM you have fat.
Nope, there is no logical reason to believe he rose from the dead. Was he a good man? Sure there are many of them and for him to be a good man is not out of the realm of possibility.