Answer: REM
Step-by-step explanation:
Scientists measuring sleepiness have found that sleep deprivation leads to lower alertness and concentration. It's more difficult to focus and pay attention, so if you're more easily confused, This hampers your ability to perform tasks that require logical reasoning or complex thought. During sleep, while your body rests, your brain is busy processing information from the day and forming memories. If you are sleep deprived, you are at risk of developing a number of serious health problems, such as hypertension, obesity, and diabetes, and your ability to learn and retain new information may be impaired.