Lack of sleep affects the immune system. People who slept 6 hours or less were 4 times more likely to catch a cold compared to those who have an average of 7 hours or more of sleep. Major benefits your immune system gets with enough sleep include the following:
Increased immune function, reduced risk to colds and flu, fight infection and illnesses, help recover from diseases, and beats mental disorders.
So, what exactly happens when you hit the sack? According to the National Sleep Foundation, a night of healthy sleep should cycle through five sleep stages every 90 minutes or so. The first four stages make up our non-rapid eye movement (NREM) sleep, and the fifth stage is when rapid eye movement (REM) sleep occurs.
Having a good sleep is everyone’s dream. More than a form of rest, this is an active period to help our body restore its’ functional systems. At least 7 to 9 hours per night is the recommended sleep for adults. One-year-olds need 11 to 14 hours, school-age children need 9 to 11 hours, and teenagers require 8 to 10 hours for quality sleep.