Body composition is the number of fat, bone, water and muscle in human bodies.
then that could mean that something is wrong. you could have asthma, COPD, lung collapsing, or many other thing that are and are not just about aging problems.
Answer:
What is it? You can talk to me if u want....
or
parents or friends, or if it's like medical then doctor, or someone else
but if u need someone to listen feel free to tell me :D
The answer is Plain Folks.
This is commonly used for advertising, for losing weight, pills, diets and even more.
Answer:
Systolic blood pressure and diastolic pressure
Explanation: