(HealthDay News) -- Head lice are small, wingless parasitic insects that feast on tiny amounts of blood sucked from the human scalp. They don't spread disease, but the itchy bites they leave behind can trigger misery and infection.

(HealthDay News) -- Corns and calluses are similar areas of thickened skin that form on the feet, often from friction caused by poorly fitted shoes.

TUESDAY, Oct. 16 (HealthDay News) -- The number of eye injuries associated with robotic-assisted radical prostatectomy -- complete removal of the prostate -- increased nearly tenfold in the United States between 2000 and 2009, although the risk was still small, a new study finds.

TUESDAY, Oct. 16 (HealthDay News) -- Testosterone, commonly thought of as the male sex hormone, seems to promote honesty, a new study suggests.

TUESDAY, Oct. 16 (HealthDay News) -- Smoking in cars produces levels of harmful particulate pollutants that are far above World Health Organization indoor air standards and likely pose a threat to children's health, a new study reveals.

MONDAY, Oct. 15 (HealthDay News) -- Nearly 170 million years of healthy life were lost worldwide due to cancer in 2008, according to a new study.

TUESDAY, Oct. 16 (HealthDay News) -- The nationwide meningitis outbreak linked to contaminated steroid injections has so far been focused on back pain patients.

MONDAY, Oct. 15 (HealthDay News) -- A prescription medication originally developed to treat epilepsy may help obese adults shed weight when combined with routine nutritional counseling, researchers say.

MONDAY, Oct. 15 (HealthDay News) -- The U.S. Food and Drug Administration issued warnings Monday about additional drugs produced by the specialty pharmacy at the center of the current meningitis outbreak.

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