Do vagal maneuvers

The vagus nerve has a variety of purposes, one of which is to link the heart and brain. The vagus nerve is stimulated by vagal maneuvers, which may help regulate an accelerated heartbeat. The vagus nerve can be stimulated at home, but only with a doctor's permission.

Here are some techniques for activating the nerve:

• Apply a cold towel or ice pack to your face for 20 to 30 seconds, take a cold shower, or splash cold water on it. The cold water's "shock" helps in stimulating the nerve.
• Cough or gag while repeating the word "om."
• Hold your breath or press down as if you’re having a bowel movement.