I have read that even hunger - a physical sensation in the body - is useful for an object of meditation. Given the fact that I am often hungry and am quite aware of this sensation in my body...and given the fact that I easily gain weight when I allow my hunger to dictate my actions (i.e overeat or eat without thought)...I thought it would be useful for me to see what insight I might get into examining this sensation more deeply.

I was wondering what others' experiences were with using hunger itself as an object of meditation. Normally I just try to focus on the breath (I am still attaining to the 1st level of concentration practice) but thought this might make for an interesting deviation. Assuming that this is a reasonable object for concentration practice, how do I actually go about it?