For mamas and mamas to be... if you ever feel stressed and your heart is racing a million miles an hour...
Splash cold water on your face. The reflex of immersion in mammals is a reflex that is triggered when the face comes into contact with cold water in order to optimize breathing, thus creating physiological reactions that allow our bodies to feel better. Some of the physiological effects that cold water creates are bradycardia (decreased heart rate) and peripheral vasoconstriction which allows more oxygen to reach the heart and brain by contracting the blood vessels.