గుండె పోటు సమయంలో ఎడమ చేయి ఎందుకు లాగుతుంది?

Pain in the left arm is a common sign of a heart attack. Why would a heart attackcause pain or discomfort in our left arm? Here's the technical reason. heart attack may cause a sensation of pain to travel from your heart to your spinal cord, where many nerves merge onto the same nerve pathway. arm may be perfectly fine, but your brain thinks that part of the heart's pain is the arm or the jaw or the shoulder or the elbow or the neck or the upper back calling out for help.