THE TEMPERATURE has started to drop on the Fraser Coast.
Along with this drop in temperature, we get the sniffles, runny noses and scratchy throats seem to come hand in hand. But why do we get colds more often in winter?
Why does the change in temperature cause more colds?
The answer is due to a mix of environmental factors, human behaviour, and how viruses thrive.
During the cooler months, we spend more time indoors.
In enclosed spaces with poor ventilation, viruses spread more easily from person to person through coughing, sneezing, or touching shared surfaces.
The proximity to others means one sick person can quickly pass a virus to many others.
Dry air also plays a role.
Winter air, both outside and inside (due to heating), tends to be drier.
This dries out the mucous membranes in our nose and throat, which are our body’s first line of defence against airborne pathogens.
You might notice the dry lips and dry nostrils. When they are dry and irritated, it is easier for viruses to invade.
Some viruses, like the rhinovirus (the most common cause of colds), survive longer in cold, dry conditions.
This increases the chances of exposure and infection.
So, while wintry weather does not directly cause colds, it creates the perfect environment for viruses to spread and for our defences to weaken.
This is one of those instances where prevention is the best protection.
Wash your hands often, stay warm, and keep your immune system strong through good sleep, nutrition, and hydration.
It is important that if you are unwell, it might be an opportunity to stay home and use those facemasks to prevent spread.
It is also important to remember that respiratory viruses such as the common cold and influenza do not respond to antibiotics.
Simple remedies to assist with symptoms are key along with rest.
Finally, immunisations are so important at preventing influenza and covid.
Immunisations has demonstrated that it will prevent you from becoming unwell needing hospitalisation and others around you.
Please roll up your sleeves and stay well during the cooler months.
Dr Nick Yim - Hervey Bay Doctors
