WEDNESDAY, Jan. 13 (HealthDay News) -- The first version of an artificial pancreas -- a potentially revolutionary way to manage insulin delivery in people with type 1 diabetes -- may be available in as little as four years.

WEDNESDAY, Jan. 13 (HealthDay News) -- A new clot-busting drug, Brilinta, may soon take the place of Plavix in treating patients with acute coronary syndrome, which includes angina and heart attack.

WEDNESDAY, Jan. 13 (HealthDay News) -- Scant evidence of antibiotic-resistant superbugs has been found in the droppings of Arctic polar bears that are isolated from humans, potentially suggesting that humans are responsible for the spread of such germs in the animal kingdom at large.

WEDNESDAY, Jan. 13 (HealthDay News) -- The estimated 7.5 million Americans suffering from psoriasis often have to tolerate long-term treatment that may be only moderately effective.

WEDNESDAY, Jan. 13 (HealthDay News) -- War isn't just tough on soldiers. Army wives whose husbands were deployed have higher rates of depression, anxiety, sleep disorders and other mental health issues than the wives of soldiers who stayed home, a new study shows.

WEDNESDAY, Jan. 13 (HealthDay News) -- Belgian transplant surgeons are reporting a medical first: They coaxed a donor trachea to grow its own network of blood vessels before transplantation by first embedding it for months in the recipient's arm.

WEDNESDAY, Jan. 13 (HealthDay News) -- Two seemingly unrelated problems might share a genetic component that may make some people more likely to suffer from both migraine and depression, Dutch researchers report.

WEDNESDAY, Jan. 13 (HealthDay News) -- Reduced dosages of dopamine agonists, drugs routinely used to treat Parkinson's disease, can cause symptoms similar to those experienced by addicts in withdrawal, such as anxiety, panic attacks, pain, dizziness and drug cravings, researchers say.

WEDNESDAY, Jan. 13 (HealthDay News) -- The Y chromosome, found only in males, has evolved faster than expected in humans and chimpanzees over the past 6 million years since the two species emerged from a common ancestor, researchers report.

WEDNESDAY, Jan. 13 (HealthDay News) -- New research in fruit flies offers insight into how cells turn cancerous.

WEDNESDAY, Jan. 13 (HealthDay News) -- Chronic sleep deprivation and the impact "sleep debt" has on functioning and thinking cannot be reversed by one good night's sleep, new research suggests.

(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:

WEDNESDAY, Jan. 13 (HealthDay News) -- Men worried that taking Viagra will lead to sexually risky behavior can relax: A new study suggests that drugs for erectile dysfunction don't make men more likely to engage in potentially unhealthy sex.

WEDNESDAY, Jan. 13 (HealthDay News) -- New research raises the possibility that people who have the highest levels of a chemical known as BPA in their urine are more likely to be diagnosed with heart disease.

WEDNESDAY, Jan. 13 (HealthDay News) -- Some good news in the war on weight: Obesity in the United States may finally be stabilizing instead of increasing, two new studies show.

WEDNESDAY, Jan. 13 (HealthDay News) -- New research is giving scientists a greater understanding of how a brain becomes susceptible to depression and anxiety on a molecular level and why some people are resistant to antidepressants.

WEDNESDAY, Jan. 13 (HealthDay News) -- A new treatment for overuse injury of the Achilles tendon doesn't appear to be effective, a new study shows.

WEDNESDAY, Jan. 13 (HealthDay News) -- Advances in genetics and biomarker identification and testing are finally bearing fruit in the battle against lung cancer, a new set of studies suggests.

WEDNESDAY, Jan. 13 (HealthDay News) -- A common complication of breast cancer surgery can be prevented or reduced if patients receive physical therapy, including massage and shoulder exercises, soon after their operation, a new study suggests.

(HealthDay News) -- Any head injury should be taken seriously, but certain warning signs indicate that the injury needs immediate medical attention.

(HealthDay News) -- A muscle cramp can occur during virtually any activity, even while sleeping.