Hypothermia is one of the biggest risks to your life at high altitude. Hypothermia is defined as a core temperature below 35 degrees. It is broadly categorised into: Mild hypothermia (32-35 degrees C) Moderate hypothermia (30-32 degrees C) Severe hypothermia (<30 degrees C)
Churn rate. Churn rate (sometimes called attrition rate), in its broadest sense, is a measure of the number of individuals or items moving out of a collective group over a specific period. It is one of two primary factors that determine the steady-state level of customers a business will support.
For any given period of time, the number of participants who discontinue their use of a service divided by the average number of total participants. Churn rate provides insight into the growth or decline of the subscriber base as well as the average length of participation in the service.