Migrating Birds May Bring Exotic Ticks to U.S.

But, so far, the parasites haven't been able to thrive in northern climates, experts say

Obesity Won't Affect Joint Surgery Safety, Study Finds

Heavy patients needed fewer blood transfusions, did not have more complications

Study Links Early Infections to Celiac Risk

But researchers caution it's not clear if childhood illnesses cause the immune disorder

Study Says Radiation Often Overused in Late-Stage Lung Cancer

Authors cite concerns about extra costs, side effects

Transgender Discrimination Linked to Risky Health Behaviors

Prejudice may make smoking, alcohol abuse, drugs, suicide attempts more likely, study finds

CT Scans for Lung Cancer Turn Up Few False-Positives: Study

Worries that wider adoption of the screen might lead to unnecessary surgeries are unfounded, experts say

Depression Adds to Burden of Alzheimer's Caregivers, Study Finds

For spouses already depressed when their loved one was diagnosed, their stress only grew

Do Taller Patients Fare Worse on Dialysis?

Risk of premature death higher in tall men than in tall women, researchers suggest

Do You Blame a Higher Power When You Get Sick?

'Negative spiritual beliefs' may lead to worse health, compared to positive beliefs, study suggests

'Drugged Driving' on the Rise in U.S.

Marijuana accounted for third of drugs found in systems of drivers killed in accidents