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Black Ice, Heavy Snow, Cold Air: The Winter Injuries That Cost You Most

From invisible ice that sends you sprawling, to heavy snow that strains your heart and back, to frigid air that bites at your lungs and skin...

November 10, 2025
11 min read
Back to Articles

Winter in Canada is a season of breathtaking beauty and thrilling activities. But beneath the postcard scenes of snow-covered streets and frozen lakes lies a harsh reality: winter is also prime time for injuries and health hazards. From invisible ice that sends you sprawling, to heavy snow that strains your heart and back, to frigid air that bites at your lungs and skin, the cold season can take a serious toll. These aren’t just minor inconveniences – they’re incidents that can cost you dearly in medical bills, recovery time, and even long-term health. So bundle up and read on, because understanding these winter dangers might just save you a trip to the emergency room (and a lot of pain).

Black Ice: The Slippery Threat You Don’t See Coming

Imagine stepping out your front door on a frosty morning. One moment you’re hurrying along, and the next – wham! – You’re on the ground, stunned after slipping on an invisible patch of black ice. If this sounds familiar, you’re not alone. In Canada, slips, trips, and falls are alarmingly common in winter. In fact, in 2020-2021, there were 162,222 reported slip-and-fall injuries, accounting for nearly 60% of all injury-related hospitalizations and emergency visits that year. A huge number of these accidents are due to snow and ice, which create treacherous walking conditions. For older adults, the risk is even higher; nearly one in five falls among seniors is caused by slipping on ice or snow. The result? Broken wrists, hip fractures, concussions, injuries that can instantly turn an active, independent life into one of hospital beds and rehab sessions.

The costs of these falls add up quickly, both for individuals and the healthcare system. Among Canadian seniors, fall injuries (often due to winter conditions) rack up about $2 billion annually in direct healthcare costs. Beyond the dollar figures, think about the personal toll: pain, limited mobility, months off work, or reliance on others for daily activities. A bad fall on black ice can mean 10 extra days in the hospital for an elderly person compared to other ailments, not to mention the risk of losing autonomy if a serious fracture leads to long-term care needs.

And it’s not just pedestrians who need to worry, drivers face black ice dangers too. This glassy, transparent ice can form on roads, bridges, and sidewalks without obvious warning. Little wonder that nearly 30% of vehicle collisions in Canada happen on wet, snowy, or icy roads. Winter conditions consistently contribute to a surge in accidents; insurance providers report a 49% jump in collision claims during December and January. Every one of those crashed cars and twisted fenders represents potential injuries and expenses that nobody planned for during their holiday season.

The takeaway: Black ice is winter’s stealthy booby trap. Whether you’re walking to your mailbox or driving to work, a moment of lost traction can have outsized consequences. The best defense is caution and preparation. Walk slowly and attentively on icy surfaces, wear footwear with good treads, and sprinkle salt or sand on your steps and driveway. If you’re behind the wheel, winter tires and driving at safe speeds can literally be lifesavers. Staying upright (and on the road) is always cheaper and safer than any fall or crash.

Heavy Snow: When Winter Workouts Turn Dangerous

There’s nothing quite like waking up to a fresh blanket of snow,  until you realize you have to shovel it. Pushing a heavy snowblower or heaving shovelfuls of wet, dense snow is backbreaking work. But did you know it can also be heartbreaking? Shovelling snow is a surprisingly intense cardiovascular workout, and it has been linked to heart attacks in otherwise healthy people. 

Science backs up the warnings. A 2017 study in the Canadian Medical Association Journal found that heavy snowfall and the exertion of shovelling significantly increase the risk of heart attack hospitalizations, especially for men. The strain of lifting heavy snow, combined with cold temperatures that constrict blood vessels, is a perfect storm of stress on the heart. In real terms, this risk translates into frightening spikes in emergency cases after big snowstorms. For example, one regional cardiac centre in Ontario saw double the usual number of heart attacks in a single week following a major snowstorm, 34 patients with heart attacks linked directly to shovelling snow. That’s 34 families shaken up and 34 lives potentially changed forever, all from an activity many of us take for granted as “just another winter chore.”

It’s not only heart attacks that heavy snow can trigger. Back injuries, muscle strains, and even concussions (from slipping mid-shovel) are common outcomes of overzealous snow clearing. Every winter, hospitals treat pulled backs and herniated discs caused by people trying to heave mountains of snow or push cars out of drifts. In extreme cases, snowy roofs have collapsed under excess weight, and people have fallen off ladders trying to clear ice dams. The bottom line is that heavy snow can pack a punch in more ways than one.

How do you protect yourself? First, listen to your body. Shovelling is an exercise; treat it that way. Warm up before you start, and don’t rush headlong into moving 20 cm of snow without a break. Use proper technique: push the snow rather than lifting it when possible, and if you must lift, squat with your legs instead of bending your back. Take frequent breaks to catch your breath and gauge how you’re feeling. If you start getting chest pain, dizziness, or extreme shortness of breath, stop immediately; these could be warning signs of a heart problem. Consider investing in an ergonomic shovel or a snowblower, or ask for help with the chore, especially if you have any pre-existing health risks. Remember, no one ever died of embarrassment from not clearing the driveway themselves, but every year, people do suffer serious health crises from snow shovelling overexertion.

Cold Air: Hidden Dangers to Your Lungs and Limbs

That blast of arctic air hitting your face in January isn’t just uncomfortable; it can be genuinely dangerous. When the temperature plummets and the wind chill is brutal, exposed skin can freeze in minutes, leading to frostbite. Frostbite isn’t a minor nip; in severe cases, it can cause permanent tissue damage and even lead to the loss of fingers, toes, or limbs if untreated. Noses, ears, cheeks, and fingers are often the first to suffer. And if the body’s core temperature drops too far, hypothermia sets in – a life-threatening condition where your organs literally begin to shut down. Tragically, each year, over 125 Canadians die due to extreme cold exposure. Those most at risk include people who work outdoors, the homeless, the elderly, and anyone caught unprepared in severe cold. Cold weather demands respect; failing to dress warmly or seek shelter can cost you life and limb.

But “cold air” isn’t just something that attacks from the outside. It also affects you from the inside as you breathe. Frigid, dry air is a major irritant to our airways. For people with asthma or other respiratory conditions, cold air is a very common trigger that can set off wheezing and asthma attacks. You might notice your lungs ache after taking a deep breath of ice-cold air – that’s your bronchial tubes reacting with spasms or inflammation. Even healthy individuals can experience bronchial irritation or a bout of coughing when exercising vigorously in the cold. And when you combine cold temperatures with the fact that winter is when we all crowd indoors (sharing germs in cozy, heated spaces), you have a recipe for respiratory illness. It’s no coincidence that flu season peaks in winter. Colds, influenza, and even pneumonia spread more easily, and cold weather may weaken our immune defenses. In fact, influenza and pneumonia together ranked as the 8th leading cause of death in Canada in 2022, claiming nearly 6,000 lives. While those aren’t “injuries” in the traditional sense, they are winter health threats that carry a hefty cost in lives and healthcare resources.

So, cold air hits you on multiple fronts: it can hurt your skin, your extremities, and your lungs, and it creates an environment where viruses thrive. Respect the cold! Dress in layers and cover up exposed skin (frostbite can’t bite what it can’t reach). Keep your head, hands, and feet insulated, since we lose heat rapidly from those areas. If you have asthma or COPD, cover your mouth and nose with a scarf or mask when out in frigid air. Warming the air before it hits your airways can prevent a nasty attack. And don’t neglect your general health: winter is the time to get your flu shot and stay on top of any other needed vaccines, eat well, and keep active indoors if you can’t safely do so outside. Your immune system will thank you, and you’ll be more resilient against the cold-related challenges winter throws your way.

Top Tips to Stay Safe This Winter

Winter may be fraught with hazards, but a bit of planning and caution can go a long way toward keeping you safe. Here are some essential tips to help you survive and thrive through the cold season:

Watch Your Step on Ice: Wear sturdy boots with good traction whenever it’s icy out. Take short, shuffle-like steps (think “walk like a penguin” technique) on slippery sidewalks to maintain balance. At home, keep your walkways clear of snow and use salt or sand to reduce ice buildup. A few minutes of prevention can spare you a devastating fall.

Winterize Your Wheels: If you drive, install winter tires, they improve traction once temperatures drop below 7°C and can dramatically shorten stopping distances on snow and ice. Always drive slowly and cautiously on winter roads. Black ice often looks like wet pavement, so assume that any dark, glossy patch could be ice. Keep extra distance from the car ahead, and carry an emergency kit (blanket, flashlight, snacks) in case you get stuck in a storm.

Shovel Smart (or Not at All): Don’t treat snow shovelling like a race or an afterthought, it’s serious exercise. Warm up indoors with light activity or stretches before you start. Use ergonomic shovelling techniques: push snow aside instead of lifting it when you can, and if lifting is needed, lift with your legs (not your back) and avoid twisting your torso while holding a heavy shovel. Take breaks every 10-15 minutes, especially if the snowfall is heavy. If you feel even mild chest tightness or unusual shortness of breath, stop immediately and rest, no pile of snow is worth a heart attack. Consider getting help from a neighbor, using a snowblower, or hiring a service if you’re older, have heart issues, or there’s an extreme amount of snow.

Layer Up and Cover Up: Dress for the cold before you go out. Multiple thin layers can keep you warmer than one big coat by trapping heat. Make sure to cover your head (a lot of body heat escapes there), hands, and feet. In extreme cold or wind, cover exposed skin – frostbite can begin in minutes at very low wind chills. A scarf or face mask is great for protecting your cheeks and also warming the air you breathe.

Guard Your Lungs: If you have asthma or any breathing issues, be extra cautious in cold air. Use your prescribed inhalers as directed and keep a rescue inhaler with you. Wearing a scarf over your nose and mouth helps humidify and warm the air, reducing airway irritation . Also, stay up to date on vaccinations (flu, COVID-19, and pneumonia if recommended) to avoid serious respiratory infections that tend to spike in winter.

Don’t Tough It Out, Seek Help: Finally, listen to your body. If you suspect you’ve injured yourself – for example, you hit your head in a fall and feel dizzy, or you might have broken a bone – get medical attention promptly. Similarly, signs of frostbite (numb, white, or hard skin) or hypothermia (uncontrollable shivering, confusion) require immediate care. Never ignore chest pain! If you might be having a heart attack, call 911 right away. It’s better to be safe and get checked out. In less dire situations (say you sprained an ankle on the ice or you’re feeling under the weather with a bad cough), you can often avoid long ER waits by visiting a walk-in clinic. Services like Medimap can help you find nearby clinics and see their wait times in real time, so you can get help faster and avoid further complications. Remember, winter health emergencies are nothing to shrug off – prompt treatment could save your life or prevent a minor issue from becoming a major one.

Conclusion

Winter in Canada will always come with challenges, that’s part of life in the True North, strong and (usually) freezingly cold. But it doesn’t have to be a months-long gauntlet of accidents and injuries. By being aware of the biggest winter dangers (now you know them: black ice, heavy snow, and cold air in all their guises) and taking smart steps to counter them, you can enjoy the season safely. Strap on those ice grips, pace yourself with the shovel, layer up, and stay alert to what your body is telling you. Winter can be magical, but it isn’t make-believe, the risks are real, and preparation and prudence are your best protection. So go forth and build that snowman or hit the ski trail, just keep our tips in mind. Stay safe out there, and remember that if something does go wrong, help is always at hand. With a bit of luck and a lot of caution, you’ll get through winter with nothing worse than a chill and maybe a great story or two to tell when the spring thaw comes.

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