Breath-holding has both benefits and risks, and understanding how it affects the body can help individuals improve their lung capacity safely.
What happens when you hold your breath?

As soon as you stop breathing, your body continues using oxygen while carbon dioxide builds up.
This triggers discomfort, diaphragm contractions, and eventually forces you to breathe again.
Why does your body force you to breathe?

High carbon dioxide levels in your blood send signals to your brain, forcing you to inhale.
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This automatic response prevents suffocation but can be dangerous if ignored, especially underwater.
Can holding your breath be dangerous?

Yes, prolonged breath-holding can lead to blackouts, increased blood pressure, and even brain damage. If done underwater, it significantly increases the risk of drowning.
The benefits of breath-holding

Breath-holding can improve lung function, reduce inflammation, and may even have life-extending effects. Some research suggests it could help regenerate brain tissue.
How divers train to hold their breath longer

Professional divers use apnea training, which involves gradual breath-holding exercises combined with controlled breathing techniques.
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This can help increase lung capacity over time.
The risks of underwater breath-holding

Holding your breath underwater can be deadly. Losing consciousness due to low oxygen levels can result in drowning if no one is nearby to help.
Can breath-holding improve athletic performance?

Yes, athletes sometimes use controlled breath-holding to improve endurance and lung efficiency. However, it should always be done under supervision.
Does breath-holding affect heart rate?

Yes, holding your breath can slow your heart rate as your body tries to conserve oxygen. However, it can also cause dangerous spikes in blood pressure.
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How to train safely for longer breath-holding

If you want to improve your lung capacity, start with short breath-holding exercises and gradually increase duration.
Always consult a professional and never train alone in water.
The average breath-holding time

Most people can only hold their breath for about 30 to 90 seconds. Factors like lung health, physical fitness, and prior training can affect this duration.
This article is based on information from Medical News Today.
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