Go to bed a little earlier: It is well known that lack of sleep affects immunity; in fact, if you sleep for less than seven hours a night, you could be three times more likely to catch a cold than someone who gets eight hours.
Winter's definitely knocking at the door. Nights are drawing in, the clocks go back this weekend and the shops are already packed with thermals.
But it needn't bring with it the usual litany of coughs and sneezes, dry skin and cold hands. Here's some simple tricks to keep you well, courtesy of the Daily Mail.
Eat with your left hand at parties: Hands can carry illness-causing bacteria and bugs such as campylobacter, E.coli or norovirus. Using a different hand to greet people and to eat reduces the chance of those bacteria being transferred to your mouth, making you ill.
Say no to hot toddy: Alcohol might make you feel warm at first because it causes warm blood to rush toward your skin (where most of your 'heat sensors' are located), but you may end up feeling colder because this action can take blood away from the internal organs, causing body temperature to drop.
Change seats on the bus: Germ-filled droplets can fly as far as 3.5 metres through the air, so if someone close to you is coughing or sneezing, turn your head away for ten seconds while the air clears, and - if you're on a bus or train - change seats if you can.
Change your toothpaste: Teeth can be especially sensitive in winter months as icy air stimulates the nerves exposed by damaged enamel or receding gums. Toothpaste for sensitive teeth works by 'plugging' the microscopic holes in the enamel.
Hose down your Christmas tree: It's not just real fir Christmas trees that can be a problem if you're prone to allergies - getting a plastic tree out of storage can also trigger a blocked nose, streaming eyes, asthma or eczema.