there are three chambers to the lungs and to listen to all of them efficiently-the dr has to put the stethoscope in 4 different places. once on your upper back (near your shoulder blades), once on the sides of your waist, once on your lower back and then in the front at the center of your chest which is close to your heart.
You might be wondering what causes stomach bloating. There are dozens of different sneaky reasons you might develop a bloated stomach â allergies, hormonal imbalances, thyroid dysfunction, gut troubles and more.
Gas and air. Gas is the most common cause of bloating, especially after eating. Gas builds up in the digestive tract when undigested food gets broken down and when you swallow air. Everyone swallows air when they eat or drink, but some people can swallow more than others, especially if they are: eating or drinking too fast.