The Cause of Growing Old

The Chinese measure age not by years but by the limberness of your spine.
I'll go one step further and say age is truly measured by hydration.
Skin dries out, organs dry up and wither away. Hair grows dry, gray and falls out. The bones grow dry and brittle.
You can apply all the creams and lotions you want. Basically we dry up from the inside out.
Therefore we need to hydrate from the inside out.