Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: Are you happy in your job? > 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 in Newsletters Everyone needs a good eight hours of sleep per night, right? More: Daily Dose: Are you happy in your job?Health-in-Motion advertisement Other news News SURVEY: Are you happy in your job? Medical 'Spare tyre' worse for your heart than 'love handles' Medical Americas first part of globe to be free of measles Medical Good outcomes for babies with cleft lip and palate Parenting 1st baby born with DNA from 3 parents News Health24 Health Challenge: Week 12 From our sponsors How to still have a good life with diabetes Eye-Q: R50 off! Lose weight Otrivin Menthol relieves sinus congestion Live healthier Love coffee? Your heart may too » What to eat for white teeth Bad foods for teeth-whitening Do any of these drinks cause your teeth to hurt? Savour your coffee – with a bright smile Here's how to stop coffee from staining your teeth while enjoying all its health benefits. Get your groove back! » Get your move on! Morning run? 5 exercises to start your summer fitness regime 6 easy ways to make your workout fun again Some inspiration to make sure your workout routine don't become tedious.