Why do we forget dreams?

Question

I can only remember some, why do people forget most of them?

Answer 1

Because they are only 3 seconds long (on average) and there's so much going on in the dream that it's hard to remember.

<3,

Answer 2

Psychology and neurophysiology tells us we forget dreams because they occur at an altered state of consciousness. Just imagine if you have ever blacked out from alcohol, or if you have taken any other drug that made you forget the next day. It basically is the same exact idea.

Answer 3

Since the early 20th century, human sleep has been described as a succession of five recurring stages: four non-REM stages and the REM stage. A sixth stage, waking, is often included. Waking, in this context, is actually the phase during which a person falls asleep. Rapid eye movement (REM) sleep is marked by extensive physiological changes, such as accelerated respiration, increased brain activity, eye movement, and muscle relaxation. People dream during REM sleep, perhaps as a result of excited brain activity and the paralysis of major voluntary muscles.

You remember your dreams if you wake up in the middle of your REM cycle.

Answer 4

dreams changes after every three seconds, so how can you remember all of it when you sleep 8 hours a day.. hahahah.. Also because dreams are results of our unconscious mind. You never know it is there inside your head.