On: Relation between alcohol consumption in midlife an...

[jstr]

The study is suggesting the opposite relationship - that decreased wine consumption _increases_ the risk of developing dementia

[emmelaich → jstr]

It's suggesting both. Low and high consumption increase the risk. For the high consumers, impaired sleep might be a thing.

[francisofascii → jstr]

Small consumption may with sleep, but large consumption hinders quality sleep.