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What is the ideal blood pressure number?

Recent guidelines suggest a blood pressure reading of less than 120/80 mm Hg as normal. But the ideal number for individuals depends on their individual goals and whether they also have a chronic condition, such as heart disease or kidney disease.

Does your advance directive really capture your wishes?

A research letter published online April 25, 2022, by JAMA Internal Medicine suggests that existing advance care directives often don't reflect people's actual wishes (based on values and beliefs) and care goals.

More benefits of a Mediterranean diet

A randomized trial published May 14, 2022, in The Lancet found that people with heart disease who ate a Mediterranean diet for seven years had a 26% lower risk of having a heart attack or stroke, compared with people who ate a low-fat diet.

Do blood tests really help diagnose Alzheimer's disease?

In May 2022, the FDA approved a blood test to help diagnose Alzheimer's disease. The test looks for amyloid-beta protein, a marker of Alzheimer's. The blood test is quite accurate, compared with positron emission tomography (PET) brain scans, which are more expensive and complicated. More blood tests, including some that look for tau protein (another marker of Alzheimer's), also are under development. Other tests used to diagnose Alzheimer's include computed tomography (CT), magnetic resonance imaging (MRI), and a spinal tap.

Tips to choose the best lens for cataract surgery

There are many choices for lenses to replace a cataract. Examples include lenses that allow a person to see clearly at a single distance, or at several distances. Some types can correct astigmatism. When deciding which lens to choose for cataract surgery, people should consider costs, daily vision needs, existing vision problems, and pros and cons; for example, some lenses have more vision range than others, but also have risks of glare at night; some lenses still require a person to use glasses for up-close or distance vision.

What's that shoulder sound?

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.

Spotting memory loss in a loved one

It can be hard to detect a potentially serious type of memory loss in a loved one, especially if small cognitive changes occur over time. It may help to note memory slips that happen consistently or those that seem uncharacteristic for the person. Tracking incidents on a calendar may also help reveal patterns. Potential incidents include consistently forgetting a close family member's name, important conversations, words for everyday objects, bills that are due, medication times or doses, or routes home from familiar places. Other common issues are frequently having trouble at work, making financial mistakes, or taking medications incorrectly.

You don't say? Can your joints wear out?

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.

Is sugar unhealthy?

Sugar is a carbohydrate that provides the body with energy and has an important role in nutrition. It is found in many healthy whole foods, but it is also abundant in unhealthy processed foods. The problem many people have with sugar is that they consume too much of the refined kind added to many processed food products, and not enough of the natural kind in fruits, vegetables, and grains.

The little things that can improve your health

In addition to major healthy lifestyle habits, such as exercising and eating a healthy diet, it's important to practice lots of little healthy habits throughout the day. Some should be observed every 30 minutes, such as taking a quick activity break and drinking a little water. Other habits, such as having a healthy snack or using eye drops, can be done every few hours. And some healthy habits help if practiced even just once a day, such as learning something new, chatting with someone outside of the household, or meditating.

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