As we age, we often find that our stature takes a bit of a beating.  Most people will lose 1/2" -2" in height during their lifetime due to thinning discs.  As a baby, your discs are 90 % water.  However, the water content in the discs decreases to 70 % by age 70.  An active inversion program can help maintain more of your original height.

The inner core of your discs is made of a jelly-like material that provides the flexibility and "cushioning" in your back.  When you are sitting, standing, or exercising, fluid is squeezed out of your discs and into the adjacent soft tissue.  As a result, your discs lose some of their moisture and height.  To prove this fact, measure yourself in the morning and then again at night.  You will lose 1/2" to 3/4" in height by the end of the day.

When you are sleeping, your discs expand as they soak up fluid and nutrients and increase the length of your spine by as much as 3/4".  But you don't gain the full height back, accumulating to a total of 1/2" to 2" in height loss throughout your lifetime. 

The only time in your life when you are giving your discs a break is when your are inverting.  A medical study measuring the pressure inside the 3rd lumbar disc reported that even when lying down, the disc pressure remains at 25%.  The hundreds of ligaments and muscles that encase and mobilize the spine act like a bunch of rubber bands holding the spine in compression equal to 25% of standing body weight.  Inverting to 60 degrees is necessary to reduce the disc pressure to zero.  Inverting is the most effective posture that allows your discs to recover from the constant pressure placed on them during your daily activities. 

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