Recent article in JAMA Pediatrics about all of the above was a real eye-opener:

6- 12 y.o. need 9-12 hours of sleep/ night. Teens need 8 – 10 hours/ night. Wow!

ALL kids need an hour of vigorous exercise EACH day.

Kids should have less than 2 hours of screen time each day (includes phones, tablets, computers & tvs.)
Obese children were 43% less likely to meet these goals while overweight children were 20% less likely.
Not meeting these goals leads to chronic health issues (obesity, mental health problem, poor grades and bad lifestyle habits)

Side note: It’s not just kids, adults need to take note of these things. There is a lot that should go into this discussion and we’re not perfect at our house but knowledge = power! I’ve had a pair of blue light blocking glasses which also helps the impact since the beginning of year and have been loving them. This doesn’t cut down on the time in front of the screen but helps with eye fatigue and improving hormones affected by blue light.