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 Even untrained dogs seem to know human gestures 2020-01-20 18:45 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Mental health Who are bigger, better liars, men or women? Medical Brain waves offer insight into sleep struggles that accompany autism Parenting How mom-to-be's worry over birth defects can harm baby Medical Could AI beat humans in spotting breast tumours? Medical How Facebook falls short for college kids battling depression Diet and nutrition WATCH: Eating disorders aren’t what you think Live healthier Lifestyle » E-cigarettes: Here are five things to know E-cigarettes have become hugely popular in the past decade, but a rash of vaping-linked deaths and illnesses in the US is feeding caution about a product that's already banned in some places. Allergy » Ditch the itch: Researchers find new drug to fight hives A new drug works by targeting an immune system antibody called immunoglobulin E, which is responsible for the allergic reaction that causes hives.