While it is normal for everyone to experience REM sleep every night, there are factors that affect the intensity, frequency, and duration of REM sleep. Read to learn more.
In new research, chemical messenger dopamine was able to move mice into a dreamy stage of sleep. Discover how this chemical affects human mood and behavior.
Very little remains known about brain activity during REM sleep. Linking neural activity during REM sleep to eating behaviors reveal the importance of sleep quality and not just quantity.
According to a new study, every 5% reduction the REM sleep may shorten the life among older and middle-aged adults by 13% to 17%. This means that too little deep sleep could increase a person's mortality rate.