Vessel capsizing and falls overboard are the leading causes of cold water immersion. Capsizing is most often caused by overloading, poorly secured or shifting loads, improper boat handling and anchoring, loss of power or steerage. Falls overboard usually occur when a person slips or loses his or her balance while standing or moving around the boat. These events usually happen quickly, and often catch people off guard. In order to prevent cold water immersion, be sure not to overload vessels and always take weather and water conditions into consideration when operating. Falls overboard can be avoided by remaining seated and limiting how much you move around a boat when it is underwaya vessel that is not at anchor or made fast to the shore.