Wait I’m confused, what’s the question?
Answer:
Because for whatever reason, some women feel that they need to become as skinny as a pencil to be noticed. That, mixed with the uncertainty and hormonal unbalances of puberty, and they'll literally run themselves into the ground trying to reach the unattainable standard for beauty that society (mainly men) have set.
Answer:
Osmosis is a special type of diffusion, namely the diffusion of water across a semipermeable membrane .