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Some kids are genetically predisposed to poor sleep, study finds (www.cnn.com)

submitted 1 year ago by [email protected] to c/[email protected]

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Establishing healthy bedtime habits for your child early on is vital if at least one parent has chronic sleep difficulties, suggests new research on genetics and children’s sleep disorders.

A genetic predisposition for sleep problems such as insomnia has been found repeatedly in studies of adults, leaving scientists wondering whether the same phenomenon occurs among children.

It does, say experts behind the first study providing evidence that genetic susceptibility to being a “poor sleeper” can also be found early in life.

Children genetically predisposed to insomnia had more insomnia-related sleep issues such as difficulty falling asleep or frequently waking up during the night, according to the study published Wednesday in the Journal of Child Psychology and Psychiatry.

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[–] [email protected] 2 points 1 year ago (1 children)

I’m thinking it’s probably a combination of poor sleep habits as an undervalued asset, along with chronotype mismatches. Something like only 30-40% of the population is the typical “morning lark” that the entire world is structured around. Everyone else is not benefiting as much from sleep or are having consequences. I’m fairly convinced that the insomnia predisposition is related to the chronotype passed from parent to child.

The book “Why We Sleep“by Matthew Walker is a fascinating and well-supported book for anyone curious about the nature of sleep.

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

I had to Google "chronotype" and I am immediately skeptical it's an accepted term. My primary source of skepticism is my absolute certainty that I and everyone I've ever discussed it with have/has a natural 25 hour clock, and left to our own devices, our sleep and wakeup times will be in constant flux.

[–] [email protected] 1 points 1 year ago

I’m not sure if it’s being used in a different context, but the way that author depicted it was natural wakefulness and sleepiness. It’s a measurable phenomenon of adenosine levels and EEG waves. People have different times of the day that they are most awake or most sleepy. One theory is as an evolutionary advatage, humans can guard each other while the other is active.

And the study that is referenced had a college professor and his grad student sleep in a pitch black cave to observe how long a “day” would be with zero sunlight. The younger student had about a 25 hr day, and the middle-aged professor had about a 24.5 hr day. It showed strong evidence that lighting has a direct relationship to sleep.