You do not have joints in your tongue so you cannot crack or pop it
yes
Healthy food makes us live longer, have more energy , and we have less health problems.
For a heathly lifestyle 
it makes your heart heathly
If is full of vitimans and nutrients
Young heathly men.
Nitrogen
be cool,jump and boxing
Apples and oranges
it makes your heart heathly
Cracking is correct, as in cracking an egg.
A heathly person can eat right and work out