Regularly blowing through a conch shell (shankh) for six months, like Disney princess Moana or Anchorman legend Ron Burgundy, significantly improved sleep among a small group of people with sleep apnea. Patients blowing a conch slept better, felt more alert during the day and had fewer breathing interruptions at night, researchers reported.

Researchers say that this offers a simple, low-cost and comfortable breathing technique that could help reduce symptoms without machines or medication.

In terms of overall sleep hygiene, 30 per cent in the conch shell-blowing group showed marked improvement compared to the five per cent improvement in the control group.