其實對大多數人來說,NREM Sleep從嬰兒到老年沒有太顯著的變化.反而是REM Sleep有較大的改變.
There is a sharp drop in the amount of REM sleep after
the early years of life, falling from eight hours at birth to less than one hour in old age. The change in the amount of NREM sleep is much less marked, falling from eight 8 hours to about five hours over our lifespan.