This was also discussed in a good book about sleep I read a few weeks ago: Why we sleep https://www.amazon.com/Why-We-Sleep-Unlocking-Dreams/dp/1501144316/ http

This was also discussed in a good book about sleep I read a few weeks ago: Why we sleep https://www.amazon.com/Why-We-Sleep-Unlocking-Dreams/dp/1501144316/ https://www.amazon.com/Why-We-Sleep-Unlocking-Dreams/dp/1501...