(HealthDay News) -- A good night's sleep does much more than help you stay awake through a long day. It actually helps protect your health.

(HealthDay News) -- Dyslexia, also called developmental reading disorder, is a condition in which the brain doesn't correctly process certain images, such as numbers and letters, says the U.S. National Library of Medicine (NLM). It's caused by a problem with the region of the brain that processes language and it hampers a child's ability to read.

TUESDAY, July 12 (HealthDay News) -- The sexually transmitted disease trichomoniasis may be much more common among older women than those in their 20s, and researchers are recommending routine screening for sexually active women aged 40 and older.

TUESDAY, July 12 (HealthDay News) -- Most patients with a certain type of bladder cancer don't get the recommended treatments, which greatly increases their risk of experiencing a recurrence of their disease, researchers say.

TUESDAY, July 12 (HealthDay News) -- Cost-effectiveness is becoming an increasingly important aspect of medical treatment, and two researchers have found that individualizing therapies to smaller groups of patients may be one way to help control costs.

TUESDAY, July 12 (HealthDay News) -- Using an invasive procedure to diagnosis lung infections in infants with cystic fibrosis does not improve their long-term outcomes, a new study finds.

TUESDAY, July 12 (HealthDay News) -- Among nursing home residents at high risk for bed sores, black patients are more likely than whites to develop the potentially serious condition.

TUESDAY, July 12 (HealthDay News) -- The immune systems of people with contact allergies may be primed to protect against certain types of cancer, including breast and brain cancers, new research suggests.

TUESDAY, July 12 (HealthDay News) -- Upward social mobility appears to help reduce the risk of high blood pressure in people who were born into poor or disadvantaged situations, according to a new study.

TUESDAY, July 12 (HealthDay News) -- People's employment status has an impact on how physically active they are during the workweek, but men and women are affected differently, new research shows.

TUESDAY, July 12 (HealthDay News) -- The use of brain scans to diagnose Alzheimer's disease may have just taken a small step forward.

TUESDAY, July 12 (HealthDay News) -- Family history remains one of the best ways to identify people at high risk for breast, prostate and colon cancer, and now new research suggests that updating your doctor between ages 30 and 50 about any close relatives who develop these cancers may lead to lifesaving changes in how and when you are screened.

TUESDAY, July 12 (HealthDay News) -- Researchers seeking a way to beat cancer have found that a particular gene, known as PAX8, is altered in a significant number of ovarian tumors, according to a new study.

TUESDAY, July 12 (HealthDay News) -- Scorching heat and oppressive humidity continued to grip much of the United States Tuesday, with temperatures exceeding 90 degrees -- and in some cases 100 degrees -- from the Southwest to the Northeast.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

TUESDAY, July 12 (HealthDay News) -- Men in the United States are much more likely than women to die of cancer, a new report from the U.S. National Cancer Institute found.

TUESDAY, July 12 (HealthDay News) -- Low reimbursements to dentists from Medicaid make getting dental care difficult for children and adolescents covered by the government health plan, new research suggests.