Stretching exercise is generally not effective for causing true height increase because once the growth plates in the bones have closed the body can no longer lengthen the skeleton itself yet stretching can still create the impression of increased height by reducing spinal compression improving posture enhancing muscular balance and allowing the vertebrae to decompress slightly which may lead to a temporary and very small change in measured height along with a more upright appearance that feels closer to being taller even though this change is not considered actual growth and is usually lost as daily activities naturally re compress the spine.
Although stretching cannot make a person genuinely taller it can be valuable for maintaining spinal health promoting flexibility reducing discomfort and encouraging better alignment which in turn may help someone stand straighter and carry themselves with more confidence while also supporting general well being so while stretching routines are worth doing for many physical benefits they should not be viewed as a reliable or scientifically proven method for increasing true height because the biological processes that determine height are primarily influenced by genetics hormonal development nutrition and overall growth patterns established during childhood and adolescence.