Have you noticed a trend? Every time you spend an extended amount of time indoors during the winter, you end up getting sick. It’s not just you. People all over the world experience this phenomenon. But why does this happen?
One of the reasons people get sick more often in winter is that the cold weather encourages virus growth. Other than that, here are more reasons why you might be getting sick more often in the winter.
You’re Breathing In Dirty Air
To keep your home warm, you crank up the thermostat, close all of the windows, and make sure no drafts are coming in. All of that means that all of the air inside your home is being recirculated and can become dirty very quickly.
Since you’re spending more time indoors, you’re breathing in all of that dirty air. It is worse if your furnace is dirty, the filters are old or clogged, or you have pets. Make sure you get a year-round heating & air conditioning system maintenance just before the cold sets in to start the season with a clean unit.
You’re Not Staying Warm Enough

If your furnace is not working correctly or the thermostat is set too low, your body will have to work harder to keep you warm. This extra effort can weaken your immune system and make you more susceptible to getting sick.
Make sure the heating system is working efficiently and address any issues quickly. If you notice unfamiliar noises, smells, or excessive dust from the vents, have a professional take a look.
You’re Stressed
When you are stressed, your body releases cortisol, a hormone that suppresses the immune system. This makes it easier for you to get sick. To avoid getting sick from stress, make sure to get enough sleep, exercise, and relax as much as possible.
Staying indoors for long periods can also make you moody, so try to get outside every day. Additionally, find fun activities to keep you occupied, such as reading, listening to music, or spending time with friends and family.
You’re Not Getting Enough Exercise
When you don’t get enough exercise, your body becomes weaker and is more susceptible to illnesses. Exercise keeps your immune system strong by releasing endorphins, the hormones that fight off infection.
Try to get at least 30 minutes of exercise every day, even if it’s just a light jog or a brisk walk. If the weather is too chilly, find indoor activities to keep you active, such as dancing, yoga, or using an elliptical machine.
You’re Not Drinking Enough Water
Water plays a critical role in keeping your body hydrated and functioning properly. When you don’t drink enough water, your body becomes dehydrated and is more susceptible to sickness. Make sure to drink plenty of water every day, especially if you’re spending a lot of time indoors. If you find it challenging to drink enough water on your own, add sliced cucumbers or lemons. Alternatively, drink herbal tea.
The Air Is Too Dry
The indoor air is often very dry in winter, making you more susceptible to getting sick. Dry air can irritate your throat and lungs and weaken your immune system. To combat the dry air, try using a humidifier.
Humidifiers add moisture to the air, keeping your throat and lungs healthy. Additionally, drink plenty of fluids to keep yourself hydrated and avoid harsh chemicals or cleaning products that dry out your airways.
You Don’t Have To Struggle Through the Winter Months
With so many germs and viruses circulating in the air, it’s no wonder so many people get sick during winter. Stay warm, drink plenty of water, get enough exercise, and relax. If you do end up getting sick, don’t worry. There are many ways to help you get better quickly. Just be sure to see a doctor if your symptoms persist.