How to keep hydrated
Even in cold environments, dehydration is a risk due to exertion and dry air. Staying hydrated is a key logistical challenge during winter. There is no access to liquid water and any water gathered for drinking will freeze quickly unless properly insulated. De-hydration can exacerbate cold-related conditions like frostbite and hypothermia, so managing your water intake is critical. Melting snow or ice with a liquid fuel stove is time consuming and potentially hazardous (e.g. burns, tent damage, carbon monoxide poisoning).
Energy management
Pulling a sled and navigating through snow can be extremely physically demanding, increasing the risk of exhaustion and injury. Proper physical preparation, understanding your limits, and having strategies for managing fatigue are essential.
Sustained physical exertion requires a continuous supply of energy to fuel muscles. In addition, cold weather increases the body’s caloric requirements as it works harder to maintain core temperature and prevent hypothermia. It is critical that you understand your caloric requirements for such a winter expedition and bring sufficient high-calorie, nutrient-dense foods that do not always require water.
