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Research we're watching

While more than three-quarters of Americans say that sun protection is important, less than half actually use it on a regular basis when they're heading outside, according to a survey by the American Academy of Dermatology. Some 28% of those polled said they rarely or never use sun protection, which includes using sunscreen, staying in the shade outside whenever possible, and wearing clothing such as hats or other items that can protect against the sun's rays. Sun exposure is the leading cause of skin cancers, affecting one in every five Americans, so the AAD says it's important that people take steps to protect themselves. The AAD recommends that you

• wear sunscreen with 30 SPF or higher
• stay out of the sun between 10 a.m. and 2 p.m., when its rays are the most intense
• use clothing to protect your skin, such as a hat and long-sleeved shirt.

Image: 漏 Aleksej Sarifulin/Getty Images

What does that skin spot or growth mean, and when should you have it checked?

Even if you're diligent about sun protection (and you should be), you can still develop skin spots, growths, or other abnormalities.

But are they always cause for concern, or just a normal part of aging skin?

News briefs

Eczema is a common and chronic inflammatory condition that leaves skin dry and itchy. A large study published in the February 2020 issue of The Journal of Allergy and Clinical Immunology found that people with eczema had an increased bone fracture risk, especially if the eczema was severe. Researchers compared 500,000 adults with eczema to more than 2.5 million people who didn't have eczema. Over a period of five years, people with eczema appeared to have slightly higher rates (7% to 18%) of wrist, hip, pelvis, and spine fractures, compared with people who didn't have eczema. People with severe eczema had much higher rates of hip fractures (50% higher), pelvis fractures (66% higher), and spine fractures (109% higher, or more than double the risk) than people without eczema. The study is observational and doesn't prove that eczema causes bone fractures; it could be that certain medications and lifestyle habits contributed to broken bones in the study. "But based on the findings, people with eczema should be aware their skin condition may increase the risk for osteoporosis and bone fractures, and should talk to their health care provider to decide if preventive measures and screening tests for osteoporosis are warranted. Healthy lifestyle choices, such as getting enough calcium and vitamin D and getting regular aerobic and weight-bearing exercise, are important for everyone and may be particularly important for people with eczema," says Dr. Robert Shmerling, a rheumatologist at Harvard-affiliated Beth Israel Deaconess Medical Center.

Image: 漏 PeopleImages/Getty Images

Ask the doctors

Q. My skin has been breaking out since I entered menopause. Why is this happening, and what can I do about it?

A. Many women notice changes to their skin at menopause. For some women this means dryness, age spots, or a tendency toward bruising. For others, estrogen levels drop while male hormone levels, such as testosterone, remain the same, which can prompt acne breakouts.

Ask the doctors

Q. I have a lot of varicose veins. Do they present any sort of a health risk?

A. Varicose veins are typically viewed as a mild, non-life-threatening condition that is more of a cosmetic annoyance than a serious health problem. That said, varicose veins can be associated with some health-related issues, such as swelling in the legs, blood clots, or damage to the skin caused by pressure from the veins. They may also make you more prone to skin damage, infections, and ulcers.

What Is It?

A tic is a sudden, rapid, repetitive movement (motor tic) or vocalization (vocal tic).

There are two main types of tics:

• Simple tics involve one muscle group
  • Simple motor tics include head shaking, eye blinking, sniffing, neck jerking, shoulder shrugging and grimacing. These are more common.
  • Simple vocal tics include coughing, throat clearing and barking.
• Complex tics involve more than one muscle group
  • Complex motor tics include self-hitting or self-biting, jumping and hopping, and twirling while walking.
  • Complex vocal tics include repeating words out of context, echoing what someone else said and speaking obscenities.

Tics sometimes change over time from one simple type of tic to another or from a simple to a complex tic. Some tics are slow and sustained rather than brief and rapid. Some involve the lower body.

Ask the doctors

Q. I have terrible dandruff that just doesn't seem to ever clear up. What can I do to treat it?

A. For most people, using a dandruff shampoo once or twice a week can control this annoying condition, in which the skin on the scalp becomes dry and flakes off. But in some cases, the condition doesn't clear up and actually requires medical attention.

Eczema is an itchy rash that's often hard to get rid of. Most people can't help scratching it, which further irritates the skin. Eczema is often, but not always, related to allergies. A common cause is your skin overreacting to everyday irritants, such as dust, soaps and detergents, or even dry, cold air, which triggers an intensely itchy allergic reaction.

Skin affected by eczema becomes dehydrated and dry easily, so treatment involves rehydrating the skin. Baths and showers must be short and not too hot. Afterwards, gently pat your skin dry and promptly apply moisturizers while your skin is still moist. Thick creams that lock in the moisture help the most. Be sure to choose creams or lotions without fragrances or preservatives. Limit the use of soaps and shampoos, too. These products remove the skin's natural oils and worsen dryness. And over-the-counter oral antihistamines can help with the ferocious itch.