Sleep

A study reported in Academic Pediatrics found that those who slept less than 10 hours a day at ages 3 & 4 and less than 9 hours a day at ages 5 through 7 are more likely to to have behavioral, social, and cognitive problems at age 7. (In brief, Sleep matters. Monitor on Psychology, 2017, 48(6), p. 12) http://www.finebergpsychotherapy.com