Older People Sleep Less As Part Of An Evolutionary Trait
In Family Groups, It Permitted At Least One Person Being Awake Or Sleeping Lightly
One characteristic of old age is fewer sleep hours. A study has shown this is an evolutionary survival trait from our ancestors. When family members slept together, this trait sets differences in sleeping patterns, in order that one member is asleep at all times, or at least sleeping very lightly. Therefore, there is no problem with older people who wake very early and cannot get back to sleep. Additional information click here.