Answer:
And firefly is the opposite of waterfall...
Salt is good for you in small quantities because sodium, part of salt, is required to maintain your blood pressure and is important for your neurological system. However too much can be bad for you because your body will become dehydrated as salt absorbs water.
Osteoporosis is a type of bone condition where the bones are weak ang brittle enough to consider the weight of the person as heavy. One way to strengthen the bones by weight bearing exercises and muscle-strengthening exercises. This is more common to women
I believe the term you are looking for is puberty.
Answer: The motivation to exercise has to do mostly with how you think about exercise.