In general, it is normal to sleep and dream, but we should pay attention to the performance of sleeping and dreaming caused by some factors. The reasons for sleeping and dreaming can be divided into two points, namely, cerebral cortex nerve excitement and physical factors. Dreaming is something that everyone does every day. Anything can happen in dreams. Because of the invisibility and variability of dreams, it also brings mysterious filtering to the existence of dreams. Therefore, everyone has a very curious psychology about dreams, especially when there are some troubled dreams, everyone still wants to interpret them.
Dreaming of a friend's knee injury: it indicates that the fortune is good, things are going smoothly, and there will be nobles.
Office workers dream of a friend's knee injury: it indicates good fortune, smooth work, and no pressure by virtue of their own strength.
Middle-aged and elderly people dream of friends' knee injuries: a sign of good health. Be careful of their knee injuries and feel their joints are not flexible.
Candidates dream of a friend's knee injury: it means that the exam results are average. I believe that the next time you make progress, you should adjust your learning methods in time.
Singles dream of a friend's knee injury: it indicates the change of love, the important decision that has been brewing comes true, and the relationship between couples is strongly interfered by both sides.
Popular Science: Why do people dream?
The generation of dreams is actually related to life activities, and it is the multiple effects of psychological and physiological influences. When people are asleep, the body still maintains a basic life activity, and our brain is no exception. Although the whole body is in a dormant mechanism, some brain cells are still active, and it is the activity of these cells that creates dreams during sleep.
Many people may find that they have left strong pictures, sounds or things during the day, which are easy to appear in dreams. This is because these things are unforgettable after being stored in the brain as memories.
Because everyone's work, thoughts, emotions, life, hobbies are more or less different, and their views on things are different, so everyone's dreams are different.
Not only people, but also some animals dream.
In many people's minds, everyone thinks that dreaming is a hint, perhaps to remind us of something, and that only humans can dream.
Dreaming is mainly because the cerebral cortex is still excited during sleep, and related dreams will appear at this time.
So many mammals also dream, such as squirrels, kittens, puppies, elephants and other animals, and birds also have some short-lived dreams.