This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Body clock may nudge preschoolers toward easier bedtimes
A first of its kind study tracks 14 healthy 2 1/2 to 3 year olds to see how melatonin timing and light exposure shape bedtimes. Researchers find the melatonin surge for preschoolers often occurs around 7 40 p.m., with bedtime around 8 10 p.m. and sleep about 30 minutes later. Earlier melatonin rise helps fall asleep faster, while later surge increases bedtime fuss. dimming lights before bed and avoiding evening electronics may help align the body clock.
MENTIONED IN THIS ARTICLE
Washington
Monique LeBourgeois
University of Colorado, Boulder
le Bourgeois
Mind, Brain and Education
LeBourgeois
Jyoti Krishna
Cleveland Clinic
Krishna
National Institutes of Health
National Institute of Mental Health