A team of Israeli researchers has found that one of the reasons that sleep could be so important to animals — including humans — is that it takes neurons 'off-line' so DNA damage accumulated during waking hours can be repaired. | CBCQuirks
Quirks & QuarksResearch has shown that sleep is important for both mind and body. Sleep is vital for learning and memory and long-term sleep deprivation can lead to depression, compromised immune function and other chronic health problems.
"It's risky behaviour. We could have an accident and we could get eaten, so we thought there must be some benefits."Looking into the brains of zebrafish Head of a larva zebrafish. Neurons are marked with several fluorescent colors. Chromosomes are marked with green . The kind of DNA damage they observed was a natural function of genetic activity and the stresses of cellular function. Even during the daytime, DNA repair mechanisms were active. However during wakefulness, the rate at which DNA damage accumulated exceeded the rate at which it could be repaired.
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