02/12/2023
With the temperature dropping rapidly over recent weeks, it's important to remind ourselves of the dangers of cold water shock.
Cold water shock is a physiological response that occurs when the body is suddenly exposed to cold water. This shock can happen in water as warm as 15°C.
One of the main dangers of cold water shock is the sudden increase in blood pressure and heart rate. This can put a strain on the heart, especially in those who may already have underlying heart conditions.
Another danger is the involuntary gasping for air that can occur when the body is suddenly submerged in cold water, causing a person to inhale water accidentally.
The shock can also cause involuntary muscle spasms, meaning even the most experienced swimmers may have difficulty exiting the water.
If you enter the water unexpectedly, it is important to stay calm and follow the Float To Live advice from the RNLI.
• Tilt your head back with your ears submerged
• Control your breathing
• Spread your arms and legs
• Move your hands to help stay afloat
Once the initial effects of cold water shock have passed, you can then call for help or swim to safety if you are able to do so.
If you're planning to enter the water then here are a few tips to minimise the risk of cold water shock:
• Check the weather forecast and water temperature
• Wear an appropriate wetsuit
• Wear a personal flotation device
If you see somebody in trouble in the water, call 999 and ask for the Coastguard.
