If the pain feels tender or worsens when you press on the area, a chest injury or pulled muscle may be the cause. Chest pain can have many causes, including angina, heartburn, infections ...
From muscle strains, bacterial and viral infections, and skin rashes, here are 9 possible causes of armpit pain and when to ...
Having solid, well-built chest muscles is vital if you want to be strong and healthy. You may want to play sports, carry a bunch of groceries, lift your kids in the air, or just look and feel good.