> Overall, we observed evidence of an association between genetically-instrumented daytime napping and larger total brain volume, but no evidence of an associat

> Overall, we observed evidence of an association between genetically-instrumented daytime napping and larger total brain volume, but no evidence of an association between habitual daytime napping and hippocampal volume, reaction time or visual memory. Yeah, this is big brain time. Does this mean that if you take too many naps your brain will eventually inflate so much it'll start pressing onto the skull and give you headaches, or just that people with larger brain volume seem to have more of a tendency to nap?