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Could blowing a conch shell help treat sleep apnoea? As a doctor working in sleep medicine, this unexpected news story certainly grabbed my attention. My first reaction was scepticism – sleep specialists don’t typically prescribe natural objects found on beaches as medical therapy. But perhaps I was too hasty to dismiss the idea.

For those unfamiliar with them, a conch shell is the spiral home of a large sea snail that, when hollowed out, can be blown like a trumpet. This practice isn’t new – cultures worldwide have used conch shells for thousands of years in rituals, ceremonies and communication. What’s novel is the suggestion that it might help with a serious medical condition affecting millions.

We all know someone who snores, but not all snoring is harmless. If your partner notices you sometimes stop breathing during the night, that’s cause for concern. You may have obstructive sleep apnoea, a condition where throat muscles relax excessively during sleep, causing the airway to narrow or close completely. These breathing interruptions – called apnoeas – can happen dozens or even hundreds of times per night.

The consequences extend far beyond disturbing your partner’s sleep. Each pause in breathing jolts your brain out of deeper sleep stages, leaving you exhausted the next day. This...

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