Shrinking With Age..

As people get older, they usually get shorter..
" The reason has a lot to do with gravity," reports The Daily Telegraph of Australia..
Under the influence of gravity , a person's height changes throughout the day.
Full height is restored during sleep.

"When our bodies get older , though, and a little less robust, the shrinking effect starts to become permanent,
" says the newspaper.
" As people get older, they lose muscle mass and fat...
It's part of the natural ageing process and has a lot [to] do with hormonal
changes... The vertebrae can actually begin to degenerate and collapse--
causeing the spine to shrink by more than 2.5 cm [one inch]."

Osteoporosis is a likely cause of the shrinking process.