FREQUENT COLDS AND INFECTIONS
‘ If you get more than two colds a year, your immune system isn’t as strong as it should be,’ says microbiologist Dr Margaret Ritchie. ‘ Working hard, stress, lack of sleep or poor diet can weaken your immune function and make you more susceptible.’ Viral infections are, of course, worth avoiding in themselves. But research shows that a weak immune system can lead to more serious health problems, such as cancer. ‘ Studies suggest as many as 15% of cancers could be triggered by a virus,’ says Dr Ritchie. Boost immunity by improving your diet, taking immune-boosting supplements, such as vitamins C and D3. Try reducing stress, getting more sleep and exercise.