Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans your middle and lower back and ...

I am trying to get into shape for summer, and one area that has always been challenging has been my upper arms. Recently, though, I began a workout routine, but a friend warned me about the risk of ...

Question: I am trying to get into shape for summer, and one area that has always been challenging has been my upper arms. Recently, I began a workout routine, but a friend warned me about the risk of ...

DEAR MAYO CLINIC: I am trying to get into shape for summer, and one area that has always been challenging has been my upper arms. Recently, though, I began a workout routine, but a friend warned me ...

Possible causes of pain in the middle of the biceps include muscle strain, bruising, and more. In rare cases, it can be due to a heart attack. Treatments will depend on the cause. The biceps is the ...

Upper body pain can range from minor strains to critical emergencies. While muscle aches often improve with rest and home care, sudden, severe chest pain, especially with shortness of breath or ...

Your deltoid muscles make up a main muscle group in your upper body. They’re connected with many other muscles and bones in your upper back, neck, and shoulder region and are extremely mobile. They ...

What Is the Latissimus Dorsi Muscle? The latissimus dorsi is a large muscle covering your back. You may know it as your lats muscles. They're connected to many parts of your body, originating from ...

Left upper quadrant (LUQ) pain stems from conditions that affect organs like your spleen, kidney, or stomach. It's best to see a doctor if your LUQ pain worsens or lasts more than 48 hours. Treatment ...

Crushing chest pain radiating to your jaw or left arm? This isn’t just a bad day at the gym—this could be a heart attack. If you experience pain with shortness of breath, sweating, or nausea, it’s ...