Heatstroke, hypothermia, diarrhea, and intestinal parasites are environmental injuries you could face.
Heatstroke
The breakdown of the body’s heat regulatory system (body temperature more than 40.5 degrees C [105 degrees F]) causes a heatstroke. Other heat injuries, such as cramps or dehydration, do not always precede a heatstroke. Signs and symptoms of heatstroke are–

An interruption of the skin’s integrity characterizes wounds. These wounds could be open wounds, skin diseases, frostbite, trench foot, and burns.
Open Wounds
Open wounds are serious in a survival situation, not only because of tissue damage and blood loss, but also because they may become infected. Bacteria on the object that made the wound, on the […]

BITES AND STINGS
Insects and related pests are hazards in a survival situation. They not only cause irritations, but they are often carriers of diseases that cause severe allergic reactions in some individuals. In many parts of the world you will be exposed to serious, even fatal, diseases not encountered in the United States.
Ticks can carry […]

You can open an airway and maintain it by using the following steps.
Step 1. Check if the victim has a partial or complete airway obstruction. If he can cough or speak, allow him to clear the obstruction naturally. Stand by, reassure the victim, and be ready to clear his airway and perform mouth-to-mouth resuscitation should […]

To survive, you need water and food. You must also have and apply high personal hygiene standards.
Water
Your body loses water through normal body processes (sweating, urinating, and defecating). During average daily exertion when the atmospheric temperature is 20 degrees Celsius (C) (68 degrees Fahrenheit), the average adult loses and therefore requires 2 to 3 […]