People are actually a bit longer in the morning than they are in the evening. This is due to the intervertebral discs, which give something during the day, and expand again at night. Throughout the day, the discs are "squeezed out" by the strain and flattened. When lying down, the intervertebral discs are soaked with water, which makes them thicker. Therefore, we "grow overnight" and in the morning are up to two inches larger than in the evening.
Structure of the spine
The spine consists of 24 movable vertebrae, which are constructed like a ring. They are superimposed, separated by very elastic cushions. These pillows are the intervertebral discs. They consist of a gel-like substance surrounded by fibrous strands and are surrounded by bands that are attached to the vertebral bones. The discs can, like sponges, soak with water.
The "hole" of the ring in the superimposed vertebrae results in the channel for the main nerve branch. The intervertebral discs are involved in the formation of the intervertebral space through which the nerves leave the protection of the spine and go to other parts of the body.
What is the function of the intervertebral disc?
Like a supporting pillar in the middle of a building, the vertebrae and the intervertebral discs (ie the spine) carry a large part of the body weight. Of course, the weight gets bigger from top to bottom and therefore the vertebrae and intervertebral discs look larger and stronger from top to bottom.
The intervertebral discs allow the spine to bend and turn - usually without pain. Without the discs, the vertebral bones would grind on each other. Spinal discs also give us, on the whole, more than 30 cm of our size. As the human gets older, it seems as if he is shrinking as the discs become thinner.