As you progress round through the day, gravity places a variety of stress in your again. It is as much as the backbone’s discs to guard your vertebrae from this compression. Once they lose water, there may be extra put on and tear on the vertebrae as house shrinks between them. The outer layer of those discs can turn out to be broken, inflicting bulging or herniated discs that may press into your sciatic nerve. That is what may cause radiating ache down your leg, in keeping with Narayana Well being.
These discs are likely to lose their hydration all through the day. Since you’re principally upright through the day and frequently compressing the discs, it is troublesome on your physique to rehydrate the discs. In truth, you may discover you are as much as half an inch shorter by the day’s finish as a result of there’s much less house between the discs as a result of lowered hydration, in keeping with Arrowhead Clinic. At night time, when you’re asleep, your physique works to rehydrate these discs, restoring your top once you get up.