3 ms·
> the mean sleep timing of the 5% of individuals carrying the most "morningness" alleles was 25.1 minutes earlier than the 5% carrying the fewest Does this mea
by yosito 9y ago
> the mean sleep timing of the 5% of individuals carrying the most "morningness" alleles was 25.1 minutes earlier than the 5% carrying the fewest
Does this mean that genetics only account for 25 minutes of difference between when "morning people" and "night owls" sleep?
- gwern 9y agoNo, that just means the subset of genetics noisily estimated by this particular method & sample can predict those extremes (ie top 5% vs bottom 5%). They don't report the full polygenic score in the paper that I see, although they note the SNP heritability is ~10% of variance (and I assume full heritability is a lot bigger since I do recall chronotype as being highly genetic).