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 Homemade masks are effective, even when we sneeze, study finds 2020-09-23 11:45 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Medical Coronavirus in SA: All the confirmed cases Medical Coronavirus morning recap: Silk masks, life expectancy, and Europe's second wave Medical Do you know the impact the Covid-19 pandemic has on your mental health? Medical Teen blasts away parts of retina after staring into laser pointer, marketed as pet toy Medical Coronavirus: SA scientists look to identify potential of medicinal plants News Partner Content | I Am Covered: How to keep your family financially secure when navigating cancer costs 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.