Not exact matches
Cosleeping
remains a cross-cultural
human universal, a species - wide behavior, an expectable and physiologically normal
sleeping arrangement likely designed by natural selection to maximize infant survival and well - being.
In
humans, neural oscillations are often studied in relation to epilepsy and various
sleeping disorders though questions
remain about their precise function.
For reasons that
remain unclear,
humans begin to lose the ability to
sleep deeply around 40 years of age, at about the same time that memory begins to decline, he notes.