this is cool
Body-clock gene reveals sleep cycles with just a pluck, study says
When the researchers tested the genes in the subjects’ follicles, they found that body-clock gene activity peaked right after a subject had woken up, regardless of whether it was 6 a.m. or 10 a.m.
This suggests that the brain “turns on” the genes at different times of the morning in different people.
Other clock genes followed similar patterns, making it possible to predict “morning people” with just a pluck, the study said.
