It's all a matter of growth
Bones
the pelvic girdle
becuase every body are fatys
They have hollow bones
It makes the bones stronger.
ya, and carbonic acid is affect to out body and bones too.
Apparently the bones account for about 12% of body weight in females and about 15% in males in a normal sized frame.
Long bones.
If you do it to much you maybe at risk for arthritis.
The octopus completely lacks any bones in its body.
Long bones.
I think that some factors that affect your body weight are: a) Depression b) Physical Activity c) Self esteem