Obstructive sleep apnoea (OSA) may affect up to 10 million of us in the UK, with an estimated four million of those facing moderate to severe cases.

The British Heart Foundation notes the common condition is linked to an increased risk of “illness and death linked to the heart”. The NHS links untreated OSA to higher blood pressure and increased risk of stroke, type 2 diabetes, and even depression.

It is also linked to “hypersomnia,” or extreme daytime sleepiness, because it interrupts the sleep of people who have it.

But a recently published randomised controlled trial from the Eternal Heart Care Centre and Research Institute in India has found that conch blowing, or shankh blowing, which is thought to date back to about 1,000 BCE, may help to reduce symptoms.

What is conch

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