(HealthDay News) -- It's often a challenge to convince kids to take much-needed medicine when they're sick.

(HealthDay News) -- Creating a birth plan means making a list of your preferences for labor and delivery.

THURSDAY, Nov. 17 (HealthDay News) -- Most people who join gangs have an "extreme antisocial personality," according to a new study that challenges previous research suggesting gang membership is driven by fear, intimidation or peer pressure.

THURSDAY, Nov. 17 (HealthDay News) -- A fetus is sensitive to, and can be affected by, the expectant mother's mental state, a new study suggests.

THURSDAY, Nov. 17 (HealthDay News) -- Learning how to describe the size and shape of objects at a young age helps children develop their spatial skills, researchers say.

THURSDAY, Nov. 17 (HealthDay News) -- Younger women who have a hysterectomy that spares the ovaries are almost twice as likely to go through early menopause as women who do not have their uteruses removed, according to a new study.

THURSDAY, Nov. 17 (HealthDay News) -- Young athletes who routinely take hits to the head could experience brain injury -- even if they do not suffer a concussion, according to the results of a new preliminary study.

THURDSAY, Nov. 17 (HealthDay News) -- Children with sunken chest require prompt evaluation to rule out more serious underlying conditions and to plan corrective surgery if necessary, according to experts.

THURSDAY, Nov. 17 (HealthDay News) -- Children with bipolar disorder and a similar condition called severe mood dysregulation spend less time looking at the eyes when trying to identify facial features, compared to children without the psychiatric disorders, researchers say.

THURSDAY, Nov. 17 (HealthDay News) -- Oncologists think they are good at managing cancer patients' pain, but a new survey shows otherwise.

WEDNESDAY, Nov. 16 (HealthDay News) -- As thousands of smokers across the United States try to kick their bad habit as part of the Great American Smokeout on Thursday, experts agree that a two-pronged strategy is the best bet for success.

WEDNESDAY, Nov. 16 (HealthDay News) -- One in 12 teens deliberately harm themselves, but 90 percent give up the behavior by the time they're young adults, a new study shows.

THURSDAY, Nov. 17 (HealthDay News) -- For the first time in more than a decade, the rate of cesarean deliveries has dropped, a new U.S. government report shows.

THURSDAY, Nov. 17 (HealthDay News) -- Inflammation caused by psoriasis may trigger changes in a person's cholesterol, including weakening the function of high-density lipoprotein (HDL), the "good" cholesterol, new research suggests.

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

THURSDAY, Nov. 17 (HealthDay News) -- People with diabetes are reporting fewer vision problems, a new U.S. government report shows.

THURSDAY, Nov. 17 (HealthDay News) -- The 19 million new cases of syphilis, gonorrhea and chlamydia diagnosed in the United States each year cost the nation's health care system $17 billion annually, according to an annual report released Thursday by the U.S. Centers for Disease Control and Prevention.

THURSDAY, Nov. 17 (HealthDay News) -- More Americans are living to 90 and beyond, and by 2050 their ranks could reach almost 9 million, a new U.S. Census Bureau report finds.