According to your total calories in and out, will you gain weight, lose weight or maintain your weight over time? Why? If you will gain or lose weight, how long will it take you to gain or lose one pound of body fat?

lifetime activities are certain actions that are either required throughout your life or you choose to do them. for example, eating is considered a lifetime activity, drinking water or other beverages, keeping your body clean, taking medicine. those types of actions are considered lifetime activities.

age might have something to do with behavior depending on the age because not everyone who is the same age acts the same like 2 year olds could have bad behavior but some won't.

i hope this : )