After the Sully rescue one person was taken to the University of Wales Hospital in Cardiff by ambulance suffering from the symptoms of mild hypothermia.

BBC: Vale of Glamorgan: Sully, Dunraven Bay tide rescues

When the body's core temperature drops below 95 degrees Fahrenheit, a mild form of hypothermia takes hold.

FORBES: Magazine Article

If the body continues to lose heat, this mild form of hypothermia morphs into a moderate and then severe form of hypothermia.

FORBES: Magazine Article