Home > Newsletters > Need to Know > Try mushroom tea Updated 05 August 2016 Action point 0 Go to bed early to prevent colds and flu. You need plenty of sleep to keep your immune system in top shape this time of year. For the latest on flu jabs and cold remedies, visit the Cold & Flu Centre. More in Newsletters Action point More: Need to KnowTry mushroom tea advertisement Other news Sex What switches our sex drive on and off? Medical How older people can prevent harmful drug interactions Lifestyle Healthy diet protects teens against later weight gain Parenting Childhood gardening may encourage fruit and veg consumption Fitness Working out in the concrete jungle Lifestyle How long has your doctor been on duty? 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.