Surprise HIV Diagnosis Becomes Life-Changing Moment

FRIDAY, Nov. 30 (HealthDay News) -- It was 1995, and 36-year-old Maria Davis had it all: a successful career as a music promoter and a model, two kids, and a man she loved so much she was going to move thousands of miles to be with him.

Among Black Americans, HIV Takes a Greater Toll

FRIDAY, Nov. 30 (HealthDay News) -- For one particular segment of the U.S. population, the news related to HIV infections has been anything but positive.

Even Women Who Exercise Sit Too Much

THURSDAY, Nov. 29 (HealthDay News) -- For women who love that great, self-satisfied feeling after a workout, a new study could be a disappointing surprise. Regular exercise, the study found, does not reduce the risk of an otherwise sedentary lifestyle.

Health Tip: Is Caffeine Giving You the Jitters?

(HealthDay News) -- Caffeine can provide a little "pick-me-up" if you're struggling to stay awake. But this common stimulant, found primarily in many coffees and teas, also can cause a number of unwanted side effects.

Health Tip: Limit Swelling While Wearing a Cast

(HealthDay News) -- It's natural for a broken limb to swell just after the injury. If the limb is in a cast, this can make the cast feel snug near the injury, causing discomfort and possible pain.

Make Sure Toys You Buy Are Safe for Tots

FRIDAY, Nov. 30 (HealthDay News) -- Toy shopping season is here and experts urge parents and others to make sure any gifts they buy for children are safe and age-appropriate.

Study: Cystic Fibrosis Patients Struggle to Exercise

FRIDAY, Nov. 30 (HealthDay News) -- Children and teens with cystic fibrosis have impaired blood vessel function, which may affect their ability to exercise, a new study suggests.

To Get More Fit, Find a Stronger Workout Partner

FRIDAY, Nov. 30 (HealthDay News) -- What would it take to get you to regularly exercise longer than you do now?

Obesity Complicates Lung Cancer Surgery: Study

FRIDAY, Nov. 30 (HealthDay News) -- Lung cancer surgery takes longer and is more costly if a patient is obese, a new study shows.

Could Baby's Crying Give Clues to Autism?

FRIDAY, Nov. 30 (HealthDay News) -- The sounds infants make when they cry could offer insight into the likelihood that they'll later be diagnosed with autism spectrum disorders, a tiny and preliminary study suggests.

Health Highlights: Nov. 30, 2012

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