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 10 March 2016 Health myth busted You can ‘catch up’ on missed sleep at the weekend. Lack of sleep has been linked to a whole host of health problems, including weight gain and heart disease. However, many of us believe that it is OK to sacrifice sleep during the week so long as we have a ‘catch up’ sleep at the weekend. Sadly, this may not be the case. In a study led by a sleep expert at the University of Pennsylvania School of Medicine, participants were restricted to just four hours’ sleep for five nights and then given a “recovery” sleep of 10 hours. Even after this sleep their reaction times, attention span and levels of fatigue failed to return to normal, showing that a single weekend lie-in may not be sufficient to make up for the effects of lack of sleep during the week. Source: realbuzz.com 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Fitness How SA’s best bodyboarders tackle the deadliest waves Diet and nutrition 6 ‘extra’ health and beauty benefits of rooibos you didn’t know about Lifestyle Quitting smoking? Even a little exercise can help you stay slim Sex Do men really hook up more than women? Medical Undigested food in your stool may be a sign of IBS News Just how unhealthy is your bunny chow? An expert weighs in From our sponsors Tell-tale signs you need a mattress upgrade Keen to win a R2 000 voucher? Good health begins in your gastrointestinal tract ACC 200 works fast to break down mucus Live healthier Your hearing » Are you going deaf or do you just need to unblock your ears? 4 foods that can improve your hearing Healthy eating may protect your hearing Watching what you eat can improve the quality of your hearing and reduce your risk of hearing loss. Quit smoking » Tougher anti-tobacco laws in the pipeline Bad news, smokers: It's going to be more inconvenient to smoke This is why many SA smokers quit – Health24 survey After running our survey for several weeks, the results are in – and they reveal interesting information about smoking and tobacco use in South Africa.