WEDNESDAY, Oct. 6 (HealthDay News) -- The rules used to be simple.

WEDNESDAY, Oct. 6 (HealthDay News) -- Sara Fought started getting mammograms at age 38, a couple of years earlier than recommended by the American Cancer Society.

(HealthDay News) -- Iron deficiency in toddlers can affect their physical, behavioral and mental development, and lead to anemia.

(HealthDay News) -- Psoriasis is a skin condition that occurs when immature skin cells rise too quickly above the surface of the skin. This leads to symptoms including patches of thick, red skin that itch or feel sore.

THURSDAY, Oct. 7 (HealthDay News) -- When it comes to attitudes, habits and experience regarding eye health, it appears men really are from Mars and women are from Venus, a new survey reveals.

THURSDAY, Oct. 7 (HealthDay News) -- Variations in a gene for an enzyme involved in cell energy metabolism may increase the risk of prostate cancer, say scientists.

THURSDAY, Oct. 7 (HealthDay News) -- Faith-based programs can help encourage older black American women to exercise, a new study suggests.

THURSDAY, Oct. 7 (HealthDay News) -- Women with an early form of breast cancer who have dense breasts may be at higher risk of getting a second breast cancer, particularly in the opposite breast, a new study indicates.

THURSDAY, Oct. 7 (HealthDay News) -- Do your genes predispose you to thrill-seeking?

THURSDAY, Oct. 7 (HealthDay News) -- Larger waist size, rather than traditional factors such as obesity, is the major reason why the United States has a higher diabetes rate than England, researchers say.

THURSDAY, Oct. 7 (HealthDay News) -- A mother's negative emotions or behavior can worsen the severity of her child's asthma, new research suggests.

THURSDAY, Oct. 7 (HealthDay News) -- Americans overwhelmingly support embryonic stem cell research, and that backing stretches across a broad range of demographic groups, including Republicans, Catholics and born-again Christians, according to a new Harris Interactive/HealthDay poll.

THURSDAY, Oct. 7 (HealthDay News) -- Taking blood-pressure pills at night, rather than in the morning, may better control hypertension and significantly reduce the risk of heart attack and stroke, new research suggests.

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

THURSDAY, Oct. 7 (HealthDay News) -- Although vaccination against influenza can protect people from illness and help prevent the spread of flu, many Americans say they and their children won't be getting a shot this coming season, new surveys reveal.

THURSDAY, Oct. 7 (HealthDay News) -- A new study finds that 22 percent of adults in the United States -- 49.9 million people -- have been diagnosed with arthritis and that 42.4 percent of those people experience arthritis-related limitations in activity.

THURSDAY, Oct. 7 (HealthDay News) -- Despite the H1N1 swine flu outbreak, children's seasonal flu vaccination rates last fall and winter weren't much higher than in the previous year, U.S. researchers have found.

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com: