Obese

I work with a lady who is well over 400 pounds, and it hurts me to watch her walk.  I often wonder what would happen if she fell and couldn't get up?  My mother is large and fell in the yard one afternoon.  It was a passing delivery driver, who saw her and stopped to help.  A few years ago she went to a weight doctor and he prescribed some weight loss pills  for her.  Over the period of a year, she lost over 100 pounds, and was looking great.  When my step-dad got sick, money started going for his medicine, and she quit taking her diet pills.  She gained all of her weight back and I believe she may have gained even more.