The muscles and correct posture maintain the natural spinal curves. Good posture involves training your body to stand, walk, sit, and lie so that the least amount of strain is placed on the spine during movement or weight-bearing activities (see Posture).
There are roughly 500 billion galaxies in the universe, meaning there is somewhere in the region of 50,000,000,000,000,000,000,000 (5Ã1022) habitable planets. Iâll leave you to do the math on whether one of those 50 sextillion planets has the right conditions for nurturing alien life or not.
There are possibly 80 billion galaxies in the universe, so that means that there are about 4Ã1068 Ã 8Ã1010 = 3Ã1079 hydrogen atoms in the observable universe. But this is definitely a lower limit calculation, and it ignores many possible atom sources such as intergalactic gas.