Heat escape lessening position
The heat escape lessening position (HELP) is a way to position oneself to reduce heat loss in cold water. It is taught as part of the curriculum in Australia, North America, and Ireland for lifeguard and boating safety training. It involves essentially positioning one's knees together and hugging them close to the chest using one's arms. Furthermore, groups of people can huddle together in this position to conserve body heat, offer moral support and provide a larger target for rescuers.
The HELP is an attempt to reduce heat loss enough to lessen the effect of hypothermia. Hypothermia is a condition where, essentially, bodily temperature drops too low to perform normal voluntary or involuntary functions. Cold water causes a type of this called immersion hypothermia, that can cause damage to extremities or the body's core.
The HELP reduces exposure of high heat loss areas of the body. Wearing a personal flotation device allows a person to draw their knees to their chest and arms to their sides.