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 28 September 2016 Everyone needs a good eight hours of sleep per night, right? Everyone needs a good eight hours of sleep per night, right? Well, actually sleep researchers don’t really know exactly what the optimal amount of sleep is, but most experts recommend that adults should aim for at least seven hours a night. Studies suggest that any less than that on a regular basis may increase the risk of heart disease, obesity, depression and early death. Sadly, surveys have shown that many people around the world routinely operate on less than seven hours, probably to the detriment of for their long-term wellbeing. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Diet and nutrition 10 of the most extreme and dangerous weight-loss methods News ‘I feel so honoured I was able to help save his life’: Daughter donates kidney to dying father News Mysterious illness turns energetic pole dancer into a fatigued ‘gran’ News Meet the dog that’s allergic to humans Diet and nutrition Here’s exactly how to make your fast food choices healthier News KZN Health Department breaks world record for Pap smears From our sponsors WIN a R2 000 beauty voucher! Understanding diabetes self-management Fed up with the Phlemings? Let’s chat diabetes and erectile dysfunction Live healthier FYI » When the flu turns deadly Why the flu makes you feel so miserable Could a deadly flu strain hit SA this winter? Following an intense flu season in the US and UK, should we be worried about our own upcoming flu season? Alcohol and acne » Dagga vs alcohol: Which is worse? SEE: Why you are drinking more alcohol than you realise Does alcohol cause acne? Some foods can be a trigger for acne, but what about alcohol? Dermatologist Dr Nerissa Moodley weighs in.