Bone, Joint & Muscle Health Archive

Joints do not wear out from overuse. Osteoarthritis, the most common type of arthritis, occurs when the smooth cartilage that lines the joint deteriorates. This might occur because of an injury, age, family history, obesity, or a disease that causes joint inflammation.

There's no one sound unique to a particular shoulder problem. That makes it hard to know what various shoulder noises are telling you. Possibilities include arthritis; bone breaks; rotator cuff tears; gas bubbles, loose parts, or bone spurs in the shoulder joint; neck problems; and bursitis. It's advisable to investigate shoulder noises if they happen, along with shoulder pain, weakness, or limited movement, or if the sound followed a shoulder injury. It's also smart (though not urgent) to ask a doctor about shoulder sounds that aren't accompanied by other symptoms.

Healthy feet are the foundation of an active lifestyle, but many people don't give their feet proper attention. Regular foot maintenance can help prevent pain and injuries and protect against infections. Helpful steps include maintaining basic foot hygiene, performing regular foot exercises, and wearing properly fitting shoes.

Strength training triggers many body reactions that protect people against chronic disease. For example, strengthening muscles helps reduce blood sugar, lower blood pressure, burn calories, and discourage chronic inflammation. Evidence suggests that getting 30 to 60 minutes of weekly strength training leads to the highest amount of health benefits. That's in line with the recommendation from the 2018 Physical Activity Guidelines for Americans. But doctors say any amount of strength training can help health.

Around age 40, most people lose some height, and the decline accelerates with age. This "shrinkage" can be slowed by preventing osteoporosis and improving posture. Getting enough calcium and vitamin D can help increase bone density, and exercises for the back and abdominal muscles can help with posture.

Platelet-rich plasma injections are used to reduce pain and speed healing for a number of common problems that affect the tendons, muscles, and joints, ranging from arthritis to shoulder pain. But a growing body of research shows that they may not be effective for some conditions, including knee osteoarthritis, ankle osteoarthritis, and Achilles tendinitis. There is some evidence that it may be effective for lateral epicondylitis (tennis elbow). People should consider whether there is a better option before undergoing PRP injections.

The first-ever guidelines to diagnose chest pain document the range of possible heart attack symptoms. They include a sense of pressure, tightness, squeezing, or heaviness in the chest but also in the shoulders, arms, neck, back, upper abdomen, or jaw. The report also provides a road map to help doctors assess chest pain with selective use of the latest available tests. Chest discomfort can also result from other conditions that affect the heart (such as pericarditis) and nearby organs. These include acid reflux, muscle or joint issues, and lung problems.

Men tend to lose as much as 3% to 5% of their muscle mass per decade after age 30, and the muscle-building hormone testosterone gradually declines after age 40. This makes it harder for men to build and maintain muscle as they age. One solution is a well-designed weight training program. Workouts should focus on all major muscles, but men should pay extra attention to leg muscles, which they rely on more for everyday movements as they age.

Protecting the skin from the sun doesn't increase the risk of vitamin D deficiency or bone fracture, according to a recent study.

Dietary fat can both help and hurt heart health, depending on the source. Eating adequate amounts of the "good" fats—monounsaturated and polyunsaturated—can help reduce cholesterol levels and lower blood pressure. "Bad" saturated fat found in many processed foods can have the opposite effect. Following heart-healthy diets like the Mediterranean and DASH diets and making small substitutions in daily eating habits can ensure people get the proper amounts of good fats.