Altitude sickness is an illness that occurs when people ascend to high altitudes too quickly, causing them to become ill. Altitude sickness can occur when people are exposed to high altitudes, such as mountain climbing.
While choosing hiking boots and/or shoes, remember that you are actually buying the most important piece of hiking gear. If you choose the right boots, you will feel like you can walk all around the world. When you choose the wrong shoes, as a result of injuries to your feet, a 5-kilometer hike will feel longer than a marathon.
The wind chill is not a true measure of cold. Moving air causes the body to lose more heat than still air. Thus, wind speed becomes a factor in how you will get affected.