While folks further north in the country may think we have it easy, midwest winters can be harsh. If you’ve lived here for a while, you know the weather can be unpredictable with heavy snow on days calling for light snow, and light snow falling on days that were supposed to be clear! Whether you’re staying here for the winter or going somewhere else with even more snow, you should learn about snow blindness and how to protect yourself from it.
You’ve probably been told at some point in your life that being in the presence of light during the night will agitate your body’s circadian rhythm (your natural internal clock). Exposure to light during nighttime hours will reduce the amount of melatonin (a hormone that helps you to sleep) that your body produces. What many people don’t realize, however, is that blue light is usually the largest culprit of melatonin suppression, and is therefore heavily linked to sleep deprivation.
It has been estimated that the American population suffers four to five million concussions every year. A concussion is usually the result of a traumatic cerebral injury that alters the way your brain functions, and is often caused by blunt-force trauma or a blow to the head. Concussions are a common injury in contact sports such as hockey, (American) football, and rugby, but can also develop after experiencing an automobile accident, or simply a bad fall. Contrary to popular belief, the vast majority of concussions are not accompanied by a loss of consciousness.
It’s estimated that more than 50 percent of Americans over the age of 18 consume coffee on a daily basis. Experts have performed numerous studies on the effects of coffee — and, consequently, caffeine — on the human body. As a result, one question that has been raised is, “Is the caffeine in coffee linked to blindness?”
According to the National Institutes of Health, cataracts are the most common cause of blindness in the world, affecting more than 22 million individuals in America alone. More than half of all people in the U.S. will experience some form of cataracts, or undergo cataract surgery by age 80. To put the statistics succinctly, there is an excellent chance that you will develop cataracts at some point in your life. Let’s take a closer look at how cataracts are formed, and what you can do to prevent cataracts from forming in your eyes: