The new pair of glasses may not necessarily be wrong, it is just that your eyes need to adjust to the new power. There is usually a breaking in period for new glasses whenever the prescription changes ( just like shoes). The breaking in period is faster if the glsses are worn continueously. If you wear it occasionally, your eyes will need more time to adjust. I would advise you not to throw away the new glasses just yet.
To understand why sleep is important, think of your body like a factory that performs a number of vital functions. As you drift off to sleep, your body begins its night-shift work: 1  Healing damaged cells. 2  Boosting your immune system.  Recovering from the dayâs activities.
One way to understand why we sleep is to look at what happens when we don't get enough: 1  As you know if you have ever pulled an all-nighter, missing one night of sleep is not fatal.What we all know is that, with a good night's sleep, everything looks and feels better in the morning. Both the brain and the body are refreshed and ready for a new day. Dreams are another important part of sleep. We'll take a closer look at how dreams work in the next section.