51.   For a really scientific look at your body fat, you need to crawl into a device Skinner calls a body pod.

52.   For each visit, I provided the gym nutritionist with a daily food diary and proclaimed the same fitness goals, to eat more healthily and tone body fat.

53.   For Stanley, weight control was never a goal, although he has toned up his body considerably and has lowered his percentage of body fat.

54.   For women, a decline in estrogen contributes to the retention of body fat, raising the risk of heart disease.

55.   For instance, older people tend to develop a higher percentage of body fat.

56.   Furthermore, children who put on excess body fat may get caught in a vicious cycle.

57.   Half the players quit, and those who stayed had almost no body fat.

58.   He changed his diet to reduce body fat and enhance speed.

59.   He has about as much body fat as a tank.

60.   He has the lowest percentage of body fat on the team.