claim: But more than 7% of deaths are related to cold—counting hypothermia, as well as increased blood pressure and risk of heart attack that results when the body restricts blood flow in response to frigid temperatures.”
evidence: Of those who die after plunging into freezing seas, around 20% die within 2 minutes from cold shock ( uncontrolled rapid breathing and gasping causing water inhalation, massive increase in blood pressure and cardiac strain leading to cardiac arrest, and panic ), another 50% die within 15 – 30 minutes from cold incapacitation ( loss of use and control of limbs and hands for swimming or gripping, as the body 'protectively' shuts down the peripheral muscles of the limbs to protect its core ), and exhaustion and unconsciousness cause drowning, claiming the rest within a similar time.