 Reference Site Map |
|
|
When winter starts with a heat wave, it seems to catch our attention pretty quickly and we tend to let our guard down about the true perils of cold. The airwaves are full of news of fanfare and excitement with approaching snowstorms. It seems that the cell phone age has made us complacent to hazards. At one time, the family Chevy carried essentials of winter survival buried deep in the crevices of the large trunk: chains, shovel, blanket, light, salt, flares, gloves, tool kit and assorted other things. Many people now seem to feel that the cell phone is able to replace all that. I gaze at people stopped on the 400 series highways in wind chills of –30°C, dangerously sitting in stalled vehicles without even bare essentials such as a hat or gloves. Remaining in a disabled vehicle on a multi-lane highway in adverse weather is an extremely high-risk behavior. If you drive on these roads, then be prepared to move well away from your car if you experience trouble. These situations define Coroner's Nightmares.
Frostbite and hypothermia are serious health problems that are associated with cold weather. Frostbite is the term applied when tissue begins to freeze. The skin begins to turn white or grayish and feels firm, hard or even waxy. It is a painless process beginning with numbness. This is why it is usually someone else that spots it on you. The treatment is to immediately warm up the area. Rubbing frostbite with snow is an old myth that should be avoided. Human cells tend to burst when completely frozen. Severe frostbite can produce enough damage to an area that it is unable to recover. The damaged dead tissue becomes infected and turns black. Often, amputation is the only option.
Hypothermia is a much more severe scenario. As the body loses heat to the surrounding environment, it burns energy stored to replenish it. If the pace cannot be maintained, then the core temperature starts to fall to dangerous levels. Initially, you have no idea that this is happening. Your brain is most affected and has trouble functioning. To an outside observer, you appear confused and disoriented. Hypothermia can strike under mild conditions such as being drenched by rain. Older persons and those with low body masses or who are fighting chronic diseases are more affected. An interesting feature of hypothermia is that it slows down metabolism, and so people who are found unconscious and seem cold should be vigorously resuscitated. They stand a chance of making a recovery if appropriately and quickly assessed, warmed and treated. Learn to respect extreme weather, especially while driving. You would be surprised to learn how easy it is to become a victim in cold weather.
Related resources:
