DIPPING YOUR FACE IN COLD WATER
Pour cold water in a bigger container, then sit on a chair, take a deep breath and submerge your face in the water, but make sure not to get it in your ears. Now, remain in the water until you feel the need to breathe again. This process will signal the brain and stimulate the nerves related to heart rate. When the brain slows down, so will your metabolism and heart rate.
TAKE A DEEP BREATH
This technique is pretty easy to follow. Whenever you experience tachycardia, inhale deeply and exhale the air in your lungs slowly afterward. Repeat the process as many times you need. This technique will relax your body and reduce your heart rate and is very effective in fighting tachycardia.
Although both methods are effective, we suggest going to the doctor after an episode. Tachycardia is a serious problem which may have fatal consequences on your health, which is why you should take it seriously.