It could mean a number of things. To ensure it's not something very serious, please get him to your doctor or the hospital immediately!
Neck, left upper chest, wrist
The heart is just a little to the left (your left) of the center of your chest.
in the chest cavity on the left of your own body
Because the heart was developed from tissues that makes it go to the left side.
in your chest slightly over to the left, very slightly.
The upper left part of his chest.
Where on your body are you experiencing this problem?? Head, neck, chest, abdomen, etc...
In the chest cavity positioned to the left from the center of the body.
The apex of the heart points towards the left side of the chest in the human body.
Traditionally, a wife sits on the left side of her husband because it is believed that the heart is located on the left side of the body. By sitting on the left, the wife is symbolically closer to her husband's heart, representing love and closeness in their relationship.
the heart is in the same position in both males & females...it lies beneath the left breast-approximately.
A dog's heart is located on the left side of its body, just like in humans. It is positioned in the chest cavity slightly tilted towards the left side.