Skin and hair health Archive

Spray-on sunscreens can be as effective as lotion-based sunscreens for protecting skin from harmful ultraviolet light. People using sunscreen sprays should make sure skin appears wet and shiny where they've sprayed and rub the product in before it dries.

Trichotillomania is a mental health disorder characterized by frequent, irresistible impulses to pull hair from the scalp or anywhere else on the body. It often results in embarrassing bald patches that people with the condition try to conceal. About one in 50 people has trichotillomania, and women are diagnosed and treated for it more often than men are. People with the disorder may pull hair when faced with stressors such as tension, loneliness, or fatigue. Among people who eat pulled hair, complications such as hairballs can be life-threatening.

The protein collagen supports skin, hair, nail, bone, joint, and muscle health. As people age, natural collagen production drops. Some early research suggests collagen supplements offer benefits, but people should ask their doctor about the pros and cons.

Wearing nail polish does not harm nails. However, doing so for long periods can dry out the surface, prompting chalky, white patches to form. Removing nail polish with acetone-based products can also dry out the nails and surrounding skin.

Varicose veins are not just unsightly and uncomfortable; they can also be harbingers of more serious conditions, including deep-vein blood clots and venous ulcers. Ablation therapies to eradicate varicose veins can lower these risks. People can also try simple strategies to prevent and improve varicose veins, including doing exercises that work their calf muscles, elevating their legs, and wearing compression stockings.

Generalized itching is common and has many potential causes. Examples include skin changes that occur with age; skin conditions; and many other diseases such as diabetes, thyroid disease, kidney disease, and liver disease. Relief involves treating underlying conditions; using medications that ease itching; bathing with lukewarm rather than hot water; using soap only on the armpits, genitals, feet, and face; and moisturizing immediately after showering or bathing.