FRIDAY, Sept. 9 (HealthDay News) -- Good hygiene has saved millions of lives, protecting people from countless bacterial and viral infections, according to the U.S. Centers for Disease Control and Prevention.

FRIDAY, Sept. 9 (HealthDay News) -- Having control over how to communicate with family, friends and colleagues about their disease helps cancer patients cope with their situation, according to a new study.

FRIDAY, Sept. 9 (HealthDay News) -- Narcissists' too-high opinion of themselves means they don't make good business or political leaders, according to a new study.

(HealthDay News) -- It's common for women to feel dizzy during pregnancy, for reasons that include pressure on blood vessels caused by the expanding uterus, and the need to eat more food.

(HealthDay News) -- The risk of developing diabetic heart disease (DHD) is directly related to a person's blood sugar level, the National Heart Lung and Blood Institute says.

THURSDAY, Sept. 8 (HealthDay News) -- Many new mothers feel a bit anxious about caring for their infant. But sometimes that concern develops into an obsession over all the things that can go wrong.

FRIDAY, Sept. 9 (HealthDay News) -- One-third of people with unexplained body odor may actually have an inherited metabolic disorder, a new study finds.

FRIDAY, Sept. 9 (HealthDay News) -- College football players show significant gains in size, strength and power over time, but smaller improvements in speed and agility, a new study says.

FRIDAY, Sept. 9 (HealthDay News) -- Fundraising methods such as a state lottery, selling specialty license plates and offering the ability to make a donation on state income tax forms have raised millions of dollars for breast cancer research and prevention programs in the United States, a new study says.

FRIDAY, Sept. 9 (HealthDay News) -- More than one-half of all adverse drug reactions treated in hospitals and emergency care are preventable, according to a new study.

THURSDAY, Sept. 8 (HealthDay News) -- People are at much higher risk for developing chronic obstructive pulmonary disease (COPD) than previously thought, according to a new study.

FRIDAY, Sept. 9 (HealthDay News) -- Researchers in Australia have developed a new treatment plan to reduce asthma flare-ups in pregnancy while minimizing drug exposure to developing fetuses.

FRIDAY, Sept. 9 (HealthDay News) -- Almost half of all the U.S. adults who experienced physical or psychological problems in the months following the 9/11 terrorist attacks still struggle with feelings of fear and anxiety 10 years later, a new Harris Interactive/HealthDay poll found.

FRIDAY, Sept. 9 (HealthDay News) -- Parents who drink -- even moderately -- may increase the risk that their children will drive under the influence as adults, a new study has found.

FRIDAY, Sept. 9 (HealthDay News) -- U.S. Food and Drug Administration advisers recommended Friday that osteoporosis drugs such as Fosamax, Actonel, Boniva and Reclast come with revised labels, clarifying how long a patient should take a drug before potential health risks set in.

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