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 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Diet and nutrition Gluten-free craze: But what about people who really can't have gluten? News Drug users target patients for their medication Medical Do itchy, burning eyes mean you have an allergy? News Limpopo Department of Health confident of healthcare turnaround News Health dept commits to resolve critical ARV shortages before year end Medical Social media posts may hint at depression long before clinical diagnosis From our sponsors Dementia and Incontinence: what you need to know Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract Live healthier Gut health » Can't lose weight? Blame it on your gut Our nutrition experts weigh in on why gut health is such an important factor in weight loss, on World Obesity Day. Sleep better » Yes, there is such a thing as too much sleep A new study confirms that too little sleep can impair your brain, but interestingly, too much sleep is also a problem.