Identifying food safety violations
most interesting about the FDA findings is that the same five categories of violations occur most frequently, year after year: inadequate pest control, unintended contamination, lack of hand washing, poor sanitization, and improper temperature
The most effective thing he can do to start making physical fitness a priority is to replace one passive activity with one physical activity each day.
Instead of just sitting in front of the computer or TV screen, maybe he could do a quick exercise just to get in shape a bit.
The skeletal system. Including bones and cartiladge.