Health – Winter health myths

As we head into winter, let’s take a closer look at familiar winter health claims to see which are backed by evidence and which are simply myths.

You can catch a cold from being cold

Myth. While it is important to keep warm in the winter, research shows that being cold alone doesn’t actually cause you to get a cold or flu. However, our immune system can be slightly weakened as our bodies use more energy to keep ourselves warm. Using heating can dry out our mucus membranes which lowers our natural barrier against viruses. We also tend to hang out indoors a lot more in the winter and that allows viruses to spread. For these reasons, colds and flus are more common in the winter.

Feed a cold, starve a fever

Myth. Both colds and fevers can cause dehydration, so it is super important to stay well hydrated. Whilst you might not feel like eating, good nutrition can help you body stay fighting fit. Soups and light broths can be helpful. And remember, you can take paracetamol if a fever is making you uncomfortable.

Vitamins can prevent a cold

True. Mostly. A healthy diet will help your immune system. Some natural supplements can help.

Vitamin D – A study from Otago University showed that Vitamin D can reduce your risk of respiratory infections especially if you are already low in it.

Vitamin C – Although Vitamin C won’t stop you from getting a cold, studies indicate that taking Vitamin C before you get sick may help to shorten how long a cold lasts. Therefore, taking it during winter months may be prudent.

Zinc – Research indicates that zinc may reduce the duration of your cold. Zinc has been studied in both the lozenge and capsule form. Check with your pharmacist about what dose might be best for you.

Antibiotics will fix your cold

Myth.  Mostly. Colds are almost always caused by viruses, so antibiotics won’t help treat them. In fact, using antibiotics unnecessarily can contribute to antibiotic resistance, which can make them less effective when you truly need them. However sometimes you might have a secondary bacterial infection, such as sinusitis, an ear infection or pneumonia and these do require an antibiotic. The flu and Covid are caused by viruses which cannot be treated with antibiotics. However there are anti-viral medications available for flu and Covid that can be prescribed by a specially qualified pharmacist or your doctor.