16/04/2026
What is Hyperventilation?
Hyperventilation is unnatural, fast or deep breathing, normally caused by anxiety, experiencing an emotional upset or a history of panic attacks.
Look for:
• abnormally fast or deep breathing
• anxiety
• a fast pulse-rate.
Later they may develop:
• dizziness or feeling faint
• trembling, sweating and dry mouth
• tingling and cramps in hands, feet and around the mouth.
What to do
• Try to reassure the casualty and be kind. If you can, take them to a quiet place. This may help them to regain control of their breathing. Ask any bystanders to leave. Give the casualty space.
• Do not advise the casualty to breathe into a paper bag as this could make the condition worse.
• Encourage them to seek medical advice, so they can learn how to prevent and control hyperventilation or a panic attack in the future.
• It is rare for children to suffer from hyperventilation, so you should try looking for other causes.
• If you are worried, and they do not seem to improve, call 999 or 112 for emergency help.