Recently there are more studies being released regarding the amount of sleep one gets.   It stated the insufficient sleep could permanently damage brain cells and intelligence and memory could also be reduced.   However,  sleeping too much can lead to similar problems.   Actually,  just like many other things,  too little or too much can both cause problems.   My fans,  what is the longest time you have slept?   On the other hand,  what is your record for staying awake?