I have to remember that if I get sick (e.g. from eating too much junk), then that takes away time from other things I'd rather be doing. Time is limited.
From "The Belly Book" by Joe Harris -
Here are a few well-belly tips:
Go easy on junk food
like soda and chips.
Go easy on candy and
ice cream and cake...
... or you will end up
with a bad belly ache!
Take care of your belly.
And if you do,
your belly will take
good care of you!