FRIDAY, May 27 (HealthDay News) -- Parents of children with autism often find themselves struggling to make sense of their child's behavior.

FRIDAY, May 27 (HealthDay News) -- Julie Wismann knew her young daughter was troubled.

FRIDAY, May 27 (HealthDay News) -- Stuttering may seem simple enough. People who stutter cannot get words out properly. They repeat or prolong sounds or syllables, sometimes appearing to physically struggle to speak.

(HealthDay News) -- Motion sickness can quickly spoil that long-awaited vacation or business trip. The inner-ear disorder affects balance and equilibrium, possibly leading to queasiness, nausea and vomiting.

(HealthDay News) -- College is an exciting time. For many students, it's their first extended stint living away from mom and dad.

Friday, May 27 (HealthDay News) -- As grills around the country are fired up for Memorial Day, one food safety expert has advice on how to ensure your barbeque or picnic is not only fun but safe.

FRIDAY, May 27 (HealthDay News) -- Contrary to the belief of some television producers, spiking cartoons with a dose of violence doesn't make kids enjoy them more, a new study reveals.

FRIDAY, May 27 (HealthDay News) -- Whether or not a woman will develop diabetes during pregnancy can be predicted up to seven years before she even conceives, new research suggests.

FRIDAY, May 27 (HealthDay News) -- Youngsters who do not get enough sleep on a regular basis are more likely to be overweight, a new study has found.

FRIDAY, May 27 (HealthDay News) -- Your size may influence how you perceive the world around you, a new study suggests.

FRIDAY, May 27 (HealthDay News) -- Older women who are overweight or obese and lose more than 15 percent of their body weight could significantly boost their levels of vitamin D, new research suggests.

FRIDAY, May 27 (HealthDay News) -- People continue to grow well into their 70s, but they're not growing taller, they're growing wider, new research shows.

FRIDAY, May 27 (HealthDay News) -- On-the-job physical activity contributes to a person's overall fitness, and should be considered when evaluating whether an individual meets recommended physical activity guidelines, a new U.S. government report says.

FRIDAY, May 27 (HealthDay News) -- Savvy tobacco companies are using color and other design elements to circumvent new U.S. regulations that crack down on misleading cigarette packaging, researchers say.

FRIDAY, May 27 (HealthDay News) -- A new, "ultra-bad" form of low-density lipoprotein (LDL) cholesterol has been discovered in people with a high risk for heart disease, according to British researchers.

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

FRIDAY, May 27 (HealthDay News) -- People with rheumatoid arthritis are twice as likely as healthy people to have chronic obstructive pulmonary disease (COPD), a large new study finds.