(HealthDay News) -- Any car travel requires preparation, especially those extended trips behind the wheel.

(HealthDay News) -- Itchy skin can be a major annoyance, whether it stems from an allergy, an irritant or plain old dry skin.

WEDNESDAY, July 28 (HealthDay News) -- Enzymes associated with Huntington's disease may offer targets for the development of new drugs to treat the neurodegenerative disease, a new study suggests.

WEDNESDAY, July 28 (HealthDay News) -- People with higher levels of education are better able to cope with dementia-related brain changes, which may explain why better-educated folks have a lower risk of developing dementia, researchers say.

WEDNESDAY, July 28 (HealthDay News) -- Obesity is associated with early puberty in young girls, according to a researcher who analyzed more than 100 reports on the issue.

WEDNESDAY, July 28 (HealthDay News) -- American parents are more likely than European parents to have conflicts with their adult children, finds a new study.

WEDNESDAY, July 28 (HealthDay News) -- Infidelity may be a way for some female birds to increase their offspring's chances of survival, the results of a new study suggest.

WEDNESDAY, July 28 (HealthDay News) -- Drinking alcohol may help keep rheumatoid arthritis at bay, possibly because it dampens the body's immune response, new research suggests.

WEDNESDAY, July 28 (HealthDay News) -- Patients are less likely to develop infections at the sites of total hip or knee replacements if they undergo epidural or spinal anesthesia instead of general anesthesia, a new study reports.

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

WEDNESDAY, July 28 (HealthDay News) -- A newly approved therapeutic prostate cancer vaccine extended the lives of men with metastatic tumors resistant to standard hormonal treatment, a new study shows.

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

WEDNESDAY, July 28 (HealthDay News) -- Teens with attention-deficit/hyperactivity disorder (ADHD) are more likely to drop out of high school or delay completing high school than other kids, a new study has found.

WEDNESDAY, July 28 (HealthDay News) -- A new implantable blood sugar sensor might one day eliminate the need for the multiple daily finger sticks that people with diabetes must currently endure to check their blood sugar levels.

WEDNESDAY, July 28 (HealthDay News) -- A certain type of sleep disorder may be an early warning of Parkinson's disease and other neurological disorders, new research confirms.

WEDNESDAY, July 28 (HealthDay News) -- If you haven't been well-trained in CPR and you see someone having what appears to be a heart attack, just doing chest compressions to help keep the blood flowing can be as effective as CPR that includes mouth-to-mouth breathing, new research claims.

WEDNESDAY, July 28 (HealthDay News) -- For the first time, scientists have been able to grow an entire joint from stem cells, albeit in rabbits not humans. And the joints worked.

WEDNESDAY, July 28 (HealthDay News) -- More than 100 reports of potentially hazardous food products were filed with the U.S. government's food safety Web site in its first seven months of operation, the U.S. Food and Drug Administration said Wednesday.