Why Do We Grow Taller During Sleep?
Did you know that you grow almost an inch taller during sleep?
Here’s why…
Your spinal column consists of 33 separate bone segments known as vertebrae held together by ligaments (tough and fibrous tissue). One important component of the spine is the cartilaginous pads called intervertebral discs.
These discs are located between each of these 33 vertebrae. They are pads of soft tissue that lie between the vertebrae. Its main function is to act as shock absorbers and provide separation between each vertebra.
On average, your total discs account for one-quarter the length of your vertebral column - 4.5 to 6 inches for most people. The thicker those discs, the longer your spinal column is and the taller you become.
These discs acquire nourishment through fluid-attracting and fluid-absorbing qualities of its jelly-like nucleus. During non-weight bearing activities (like sleeping) the discs expand as they soak up fluid, increasing the length of the spine by as much as an inch overnight.
However, the pull of gravity during the day results in compression fatigue. That causes the average adult to lose an inch in height each day primarily because fluid is squeezed out of the spinal discs (this reverses during sleep).
Therefore, if you measure yourself in the morning right after you wake up, you are about an inch taller than if you were to measure yourself at night.