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 23 January 2018 Sleep is vital for the process of memory formation. Scientists have known for some time that sleep is vital for the process of memory formation. Recently, British scientists have demonstrated that while asleep, the brain doesn’t simply 'overwrite' multiple memories of a previous experience, but actually generates, stores and strengthens both the old and new versions alongside one another. "In this way, sleep is allowing us to use our memory in the most efficient way possible, enabling us to update our knowledge of the world and to adapt our memories for future experiences," explains lead researcher Scott Cairney. 0 More: Daily Dose: This is why your vanilla or cinnamon flavoured e-cigarette is toxicHealth-in-Motion advertisement Other news Diet and nutrition Breakfast vs. dinner: Which meal is mightier? Lifestyle Do these sleep myths really work to get you to bed? Medical Why gum disease can affect so much more than your oral health Sex Can you burn kilojoules while having an orgasm? Lifestyle 5 recent discoveries about periods that could literally change your life Medical A needle-free flu vaccine in the mail? It might not be that far off 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 Looking younger » Can maple leaves help you look younger? New research has found that maple leaf extract can help you look years younger. Killer foods » Wild mushrooms a 'silent killer' Health practitioners are warning people to stay away from wild mushrooms.