The spinal exercises can be performed by anyone young or old as it never fuses together, 33% of your height comes from your spine which consists of 33 separate bone segments known as vertebrae held together by ligaments (tough and fibrous tissue). Out of these 33 vertebrae, only the lowest 9 are fused into two immovable bones, the sacrum and the coccyx, forming the back of the pelvis. All the other 24 vertebrae are permanently movable and thus will never be fused. These 24 vertebrae are the 7 cervical (neck), 12 thoracic (back of chest), and 5 lumbar (loin).
Located between each of these 24 vertebrae are cartilaginous pads called disks . The thickness of the disks determines the length of the spinal column and directly influences the height. There are totally 25 disks, their combined length accounts 25% of your total height. Since these disks are non-fusible cartilages, they can constantly grow thicker under the stimulation of growth hormone during a life time which explains why elderly people start to shrink due to Osteoporosis. The thicker those disks are, the longer your spinal column is and the talleryou become. Even if each disk grows only 0.25 cm (0.1 inch) thicker, which is the length of this line in quotes “_”, you will grow taller by 0.25 * 25 = 6.25 cm (2.5 inches).
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