Hiccups

Treatment for “idiopathic persistent singultus,” a.k.a. the hiccups: Supra-SupraMaximal Inspiration (SSMI)

1. Exhale completely, then inhale a deep breath.

2. Wait 10 seconds, then—without exhaling—inhale a little more.

3. Wait another five seconds, then top up the breath again.

4. Finally, exhale.

How to (Actually) Stop Hiccups - The Atlantic

Hiccups may be related to how fish breathe through their gills. Convince yourself you are not a fish by telling yourself "I am not a fish" or ask a friend to tell you that you aren't a fish.