Cold Weather, Football and Cool Advice
What happens to the body in extreme cold?
Our bodies are built to protect their most precious machinery—vital organs such as the heart, kidneys, and lungs. When faced with bone-chilling cold, we shunt all available blood to these organs to keep them warm and functioning. That means that extremities take the hit for the rest of the body which is why your fingertips, toes, nose, and earlobes get so cold: They lose their blood.
It’s also why you may feel like urinating when you’re in very cold weather: Your kidneys get a lot of blood flow.
Reduced blood flow to the extremities makes your legs and arms more sluggish. If you’re out long enough and your body temperature starts to drop, your metabolism—how your body processes energy—also slows, causing mental confusion.
There’s a saying that “cold makes you dumb,” meaning it’s particularly dangerous if you have to make a crucial decision in the cold, like choosing a path on a hiking trail.
If skin is exposed for too long, frostbite—or skin damage caused by cold—can eventually set in. Whether someone gets frostbite depends on several variables, such as the person’s health, the temperature, and the length of exposure.
How dangerous is it to be in extreme cold?
Prolonged exposure to severe cold is a real riskhough there’s no real definition for “prolonged.” Indeed, little is really known about how much cold is too much cold; doctors don’t experiment on people because it would be inhumane.
Much of how you fare depends on your health and age.
Another factor to consider is the wind, which robs your body of heat more quickly than it can be produced. That’s why biking or running in very low temperatures—which increases a person’s pace and exposes them to more wind—is a bit more dangerous than walking,
What’s more, it doesn’t have to be a super-freezing or Mount Everest-type environment to see the effects of cold if someone is outside long enough.
The Cold and NFL Football
What about professional athletes—especially football players who play in the brutal cold?
Playing football in temperatures below 20°F (-7°C) “is not smart, but it’s not any more dangerous than getting hit by a linebacker.
But when you get into subzero temperatures, it becomes foolhardy. The San Francisco 49ers beat the Green Bay Packers in Wisconsin when the windchill was -10°F (-23°C)—one of the coldest games in NFL history.
Most players were prepared for the cold, wearing gloves and using hand-warmers and covering their skin when they were off the field. Plus, wearing short sleeves isn’t quite as bad as wearing short pants, since the players’ upper limbs are closer to their hearts and thus a bit warmer.
In general, athletes—even though they’re in superb shape—may encounter additional effects from the cold because their constant motion forces blood to the extremities, taking the vital fluid away from the organs.
Exposing muscles to extreme cold also increases the likelihood of tears, sprains, and spasms.
What’s the best advice for weathering a cold snap?
First off, avoid being outside for prolonged periods. If you’re going to be outside for a long time, cover up exposed skin—especially the face—and eat and drink water beforehand: Eating provides your body with fuel that can help you tolerate cold. Also, wear a windbreaker to prevent frigid gusts from stealing your body’s heat.
If you start to feel pain or numbness, or notice your skin turning paler, go inside immediately: These may be early signs of frostbite. And whatever you do, don’t rub the affected skin—that increases the damage.