having the strength and enthusiasm we need for physical or mental activity

things we often do that are not good for our health

physical or mental activity that we do frequently to stay healthy

the correct types and amounts of food that we need to stay healthy

= something that helps to cure an illness or injury

= the quality of being physically strong

= pieces of flesh in our body that allow the movement of our arms, legs, etc.

= to have a health problem

= to look at someone's body carefully to find out if there is a health problem

We need to (1) on fast food if we don't want to (2) heart diseases in the future.