Answer:
Valsalva maneuver
Step-by-step explanation:
The valsalva maneuver is a breathing technique that can be used to help diagnose a problem with the autonomic
nervous system (ANS). It can also be used to help restore a normal heart rate if your heart starts beating too fast.
It increases pressure in the chest which in turn changes in heart beat rate and the blood pressure rate.
Breathing in and holding your breath for at least 10seconds and releasing it out forcefully are simple steps in performing this exercise.