My father-in-law is obese, has a hard time getting out of a chair, and yet... ...he is first in line for food.  Magically he can quickly rise up from his barcalounger and rush the kitchen counter. Day in and day out, he moves slow, shakes and wobbles as he walks, and breathes quite loudly. He is in his 70's, can no longer smell or taste food, has a hard time operating a knife and fork to cut his meat due to his fat, shaky fingers.  But he manages to stuff his piehole with anything fattening, and do it at a fast pace, looking down at the food, hungrily scarfing like a Jack London dog.  Then he collapses back on the nearest sofa. My wife is thin and healthy. She eats salads twice a day and she walks. Her sisters are fat, so I've warned her...