Stroke Archive

You have the power to reduce certain risk factors for the disease.

We've come a long way in our understanding and treatment of age-related macular degeneration (AMD), the leading cause of vision loss for people ages 50 or older in the United States. We've learned that certain genes and lifestyle factors increase the risk for developing AMD, and discovered treatments that often slow the disease's progression.

Yet for all our advances, we still don't have a guaranteed way to prevent AMD. You are at greater risk if one of your parents had the condition. "One needs to be concerned, but it doesn't mean you're destined to get it. It's a complex disease, and it takes a combination of factors for it to develop," says Dr. Joan W. Miller, chief of ophthalmology at Harvard-affiliated ­Massachusetts Eye and Ear and ophthal­mology chair at Harvard Medical School.

It takes a one-two punch to lower these risks for heart disease, heart attack, and stroke.

High cholesterol has long been known as a bad actor in heart health. Too much LDL (bad) cholesterol in your blood can lead to fatty deposits in your arteries and the formation of artery-narrowing plaque (atherosclerosis), heart attacks, and strokes.

But LDL doesn't act alone. Chronic inflammation — a persistent activation of the immune system — also fuels heart attack and stroke risks. That means you must address both high LDL levels and chronic inflammation to protect your health.

A history of discrimination in multiple settings, including health care, may make some people who identify as LGBTQ+ hesitant to get a COVID-19 vaccine, even though the virus has disproportionately harmed this community. If you're struggling to make a decision, this may help you consider benefits and risks.

Obstructive sleep apnea leaves people tired, but also puts them at risk for other health problems. Not everyone with sleep apnea can use an airway pressure machine, and some may simply prefer not to. There are oral appliances available, but are they effective?

Try stress reduction to improve your quality of life and potentially relieve allergy symptoms.

Spring allergies are a stressful business. Coping with watery eyes, a runny nose, sneezing, coughing, or a sore throat affects how you get through each day. "The primary consequence is a reduced quality of life. This naturally can lead to stress on patients and their families," says Dr. Ahmad Sedaghat, an ear, nose, and throat specialist at Harvard-affiliated Massachusetts Eye and Ear Infirmary.

The influence goes both ways: not only can allergies cause stress, but stress can make allergies worse.

What to do about prickly heat, poison ivy, and other uncomfortable skin reactions.

 Image: © LCOSMO/Getty Images

Sunburn is a big risk in the summer. You know the rules: seek the shade, wear protective clothing, and use a broad-spectrum sunscreen (with an SPF of at least 30). But sunburn isn't the only summer skin problem.

Plant-related rashes

Many people are allergic to urushiol, an oil found in poison ivy and poison oak. Exposure occurs when you touch the plant directly, maybe while gardening, or indirectly, by touching an object that's picked up the oil (like a shoe). You can spread the oil wherever you touch your body until the oil is washed off. Two to 10 days later, the affected skin develops a red, itchy, blistering, oozing rash. It's not contagious, though you may feel like it's spreading. "The allergic reaction continues to unfold even after you've washed off the oil," says Dr. Jason Frangos, a dermatologist at Harvard-affiliated Brigham and Women's Hospital.

Men may avoid activity because of their knee pain, but movement is exactly what they need.

It is perhaps the ultimate exercise catch-22: it's hard to move with knee osteoarthritis, but moving helps relieve osteoarthritis knee pain.

More than 30 million Americans have osteoarthritis, the most common kind of arthritis. While osteoarthritis can affect the hips, lower back, neck, and fingers, it occurs most often in the knees. In fact, an estimated 10% of men ages 60 and older have symptoms of knee osteoarthritis.

Myasthenia gravis (MG) is a rare neuromuscular disease that impairs the transmission of nerve signals to muscles, causing temporary weakness of affected muscles. While treatment is complex, recently updated guidelines have added to the understanding of MG and are improving approaches to treatment.

On call

Q. Years ago, my doctor told me a skin growth on my back was a seborrheic keratosis. Now I have more, and they seem to be multiplying over time. Is there any way to prevent them?

A. Seborrheic keratoses are raised, rough lesions that appear as a waxy brown, black, or tan growth. This common skin condition often shows up after age 50 on the trunk, back, face, or neck. The good news is that even though keratoses can increase in number over time, they aren't cancerous or contagious.