well actually relationships don't keep you healthy because when your done with the person it brakes your heart and keeps you sad for a while !
you can keep your stomach healthy by eating healthy foods
By reading Twilight!!! and exercising. and eating healthy. everything you do to keep your body healthy, will keep the system healthy.
you keep it healthy by pooping on your self
you dont have to keep healthy its your choice
is more sexual including intercourse,various deviant interests, but eventually the activity will diminish unless with multiple reationships
by eating healthy food -*
haw to keep your blood healthy
eating healthy
You can keep your nails nice & healthy by triming them once a week.
you need to not eat junk food to keep your heart healthy
it helps you to keep healthy by ordering you to eat excersize etc
Michael Phelps does not eat healthy food to keep his body healthy dude he took drugs.