TUESDAY, Feb. 2 (HealthDay News) -- A diagnosis of prostate cancer can be unnerving enough to up a man's odds for either suicide or fatal heart attack, new research indicates.

TUESDAY, Feb. 2 (HealthDay News) -- A diagnosis of prostate cancer can be unnerving enough to up a man's odds for either suicide or fatal heart attack, new research indicates.

TUESDAY, Feb. 2 (HealthDay News) -- Extended use of nicotine patches improves the likelihood that smokers will be able to kick the habit and reduces the risk that they'll start smoking again, a new study has found.

TUESDAY, Feb. 2 (HealthDay News) -- Lack of the brain chemical serotonin may be crucial to sudden infant death syndrome (SIDS), new research finds.

TUESDAY, Feb. 2 (HealthDay News) -- High protein levels in urine can signal trouble for people who are at risk for kidney failure and associated problems, a new study suggests.

TUESDAY, Feb. 2 (HealthDay News) -- It's unusual for a paper in a medical journal to be accompanied by an editorial saying that the conclusion reported in the paper might be "overly simple and consequently not clinically useful."

TUESDAY, Feb. 2 (HealthDay News) -- Lead may play a role in the development of attention-deficit hyperactivity disorder (ADHD), new research suggests.

TUESDAY, Feb. 2 (HealthDay News) -- The prestigious British medical journal The Lancet on Tuesday formally retracted a highly controversial study that had linked the measles, mumps and rubella vaccine to autism and gastrointestinal problems.

TUESDAY, Feb. 2 (HealthDay News) -- Young children of Hispanic mothers whose main language is Spanish watch less TV than children of Hispanic moms who speak mostly English, a U.S. study has found.

TUESDAY, Feb. 2 (HealthDay News) -- American scientists say they may have found a new way to trick the body into burning more fat.

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

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

TUESDAY, Feb. 2 (HealthDay News) -- Obesity causes later onset of puberty in boys, new research indicates.

TUESDAY, Feb. 2 (HealthDay News) -- Among people at high risk of developing schizophrenia and other psychotic disorders, fish oil may help reduce their risk, researchers have found.

TUESDAY, Feb. 2 (HealthDay News) --When a doctor wants to assess the condition of heart arteries without putting a gadget into those blood vessels, the X-ray technology called computed tomography -- more commonly called a CT scan -- is better than magnetic resonance imaging, or MRI, a German review of studies has found.

TUESDAY, Feb. 2 (HealthDay News) -- In a study that highlights the growing crisis of birth-acquired HIV in teens and young adults, new research has found that nearly 50 percent of youths aged 10 to 18 who were admitted to two public hospitals in Zimbabwe were infected with HIV, the virus that causes AIDS.

TUESDAY, Feb. 2 (HealthDay News) -- In addition to the risks associated with directly inhaling cigarette smoke, smokers also face significant risk from their own secondhand smoke, researchers say.

TUESDAY, Feb. 2 (HealthDay News) -- Parents who make regular visits to the dentist are more likely to take their children to the dentist, a new study shows.

(HealthDay News) -- A well-designed cross-training program includes a variety of alternating exercises that stress different methods of workout and affect different parts of the body.

(HealthDay News) -- Migraine headaches frequently are characterized by symptoms such as nausea, dull or severe head pain and sensitivity to light.