A little knowledge is your best asset for meeting most of these challenges. The following links are to web pages that discuss some of the more common challenges faced by most hikers at one time or another and suggestions on how you can best meet these challenges. Cold - Getting cold can be a life threatening situation even when temperatures are not extremely low. Condensation - This often misunderstood phenomenum can produce wet and then cold conditions. Heat - Too much of anything can cause drangerous bodily imbalances.
Heat is no exception.
Lightning - Learn how to cope with lightning when caught in a storm. Rain - Rain keeps many would be hikers at home or tent bound, but it doesn't have to. Snow - Avoiding snow related problems is easier for those properly prepared. Navigation - Getting lost in the wilderness can turn surviving in paridise into a harrowing ordeal. Learning a few basic skills to prevent getting lost is easy.