Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxic > Health-in-Motion 13 April 2018 For kids, more screen-time means less happiness. For kids, more screen-time means less happiness. That is the key finding of a survey evaluating over a million US high school children. The data indicate that youths who spend a lot of time on their cellphones and computers tend to be less happy than their peers who spend more time on face-to-face social interactions, sports and other off-screen activities. Beyond an hour of screen time per day, unhappiness steadily increases. Lead researcher Jean M. Twenge recommends "no more than two hours a day on digital media". 0 NEXT ON HEALTH24X 10 tips to keep your immune system in tip top shape while you are travelling 2019-07-18 06:32 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Medical 5 lifestyle changes you can make today to improve urinary incontinence Parenting Kids need to be exposed to germs, but how much is okay? Diet and nutrition 11 reasons why you're not losing weight on the keto diet Medical How to survive the day after a night of terrible sleep Medical How Chinese scientists cut local numbers of dangerous mosquito by 94% Diet and nutrition Would you like a lizard with that salad? Live healthier Heart health » 5 women share exactly what it feels like to have a heart attack 'I felt like I had a pill stuck in my throat.' Diet & Nutrition » 8 benefits of gherkin juice that will make you want to drink some ASAP Goodbye, salt craving.