People who inject drugs are at higher risk for hepatitis B, a liver disease that can cause serious problems. But vaccination rates for the condition improve with financial rewards.

A team from the University of Edinburgh in the UK have made history in regenerative medicine by fully restoring the thymus - a component of the immune system - in very old mice.

Green tea is hailed for numerous health benefits. Now, new research from the University Hospital of Basel in Switzerland finds the beverage could boost our working memory.

Eating a diet that consists of processed foods and sugars not only contributes to obesity but also to lethargy, researchers have shown in a new mouse study.

We already know caffeine intake appears to ward off Alzheimer's but not how exactly. Now a mouse study suggests it blocks a receptor involved with tau deposits in the brain.

Four young paraplegics who have been paralyzed for years are able to move their legs voluntarily following epidural electrical stimulation of the spinal cord.

Carbon monoxide (CO) poisoning can be fatal, killing at least 430 Americans every year. Now, research finds that power outages and snowstorms may increase the risk of CO poisoning.

Though not common in North American diets, eating one serving of legumes per day can lower 'bad' LDL cholesterol by 5%, a new study finds.

Why do today what you can put off until tomorrow? New research suggests procrastination and impulsivity are traits that can be inherited.

Researchers have long known that the sense of touch is a result of sensory receptors sending signals through the nerve cells to the brain, but the exact mechanisms behind this process have been unclear. Now, scientists from Columbia University Medical Center in New York, NY, say they have identified the key cells involved in touch sensation.

A degenerative disease causing pain and swelling of the knee joints, knee osteoarthritis currently has no cure. But researchers say drinking milk every day has been linked to reduced progression of the disease.

Ohio State University researchers have taught computers how to recognize 21 different human emotions from distinct facial expressions. If you did not realize there are that many feelings in our emotional vocabulary, however, then you may have forgotten about seemingly contradictory emotions, such as "happily disgusted" or "sadly angry.

Researchers say they have discovered a promising target for new drugs that might be able to reverse the fibrosis process in systemic sclerosis or scleroderma - a rare disease that cuts short the lives of many patients and for which there is no cure or effective treatment.

The idea of a general, quick and simple blood test for a diverse range of cancers just came closer to reality with news of a new study published in Nature Medicine.Researchers from Stanford University School of Medicine have devised an ultra-sensitive method for finding DNA from cancer tumors in the bloodstream.