7. Pain in the arms
If the heart is not producing enough oxogen, the initial effects will be felt either in the chest area; or more commonly, the left arm. The pain in the arm is actually referred pain, as in the pain does not actually exist where it is felt, rather as the pain travels up the spine, where there are neuronal connections to the intercostobrachial nerves giving the sensation of pain in one’s arm. (for men it’s usually the left arm, for women it could be either)
