Long-term use of marijuana can lead to increased risk of developing hallucinations, delusions and psychosis, a new study shows.The researchers found there was an association between length of marijuana use and mental health.

A complete fitness program must include aerobic exercise, muscular strength and endurance conditioning, and flexibility exercise.

New research indicates that white rye flour, made from the inner, white part of the rye kernel, leads to better insulin and blood sugar levels compared to regular wheat flour and rye bran.

Cutting off the flow of blood to the arm by repeatedly inflating a blood pressure cuff appears to reduce the amount of tissue damaged during a heart attack, a new Danish study shows. This procedure somehow has a protective effect on heart muscle, by mechanisms that are not yet understood, the researchers said.

If you’re trying to reduce your sensitivity to pain, Zen meditation may help by actually thickening your brain, new research suggests.

Most pancreatic cancer patients die soon after diagnosis, but researchers have identified an oncogene that appears to be a promising new treatment target.

Anyone can catch flu, but children may be particularly susceptible, particularly when in close proximity to other children at school or nursery.

Patients with chronic illnesses often suffer from anxiety, but new research suggests that this can be relieved through regular exercise.

The number of teenage pregnancies in England and Wales has fallen by 4%, according to figures released by the Office for National Statistics.

Hospitals that spend more to treat patients don’t necessarily have the best quality of care, researchers say.

Japan, which is one of the world’s biggest consumers of cigarettes, plans to call for a nationwide ban on lighting up in bars, restaurants and other public places, officials said Monday.

Low back pain is often triggered by some combination of overuse, muscle strain, or injury to the muscles and ligaments that support the spine. Less commonly, low back pain is caused by illness or spinal deformity.

They are warm blooded, social and highly intelligent animals, and their brain is much bigger than expected. But dolphins also share something else with man – they suffer a diabetes-like state not seen in any other wild animal.

Recent studies have found that obese men tend to have poorer quality sperm than leaner men do — including lower sperm counts and fewer progressively motile sperm.

Eight out of 10 men and almost seven in 10 women will be overweight or obese by 2020, according to a study published today. Meanwhile, 36% of women will be obese and 32% will be overweight.

Doctors may soon be able to tell whether cancer has been successfully eliminated from the body using a sensitive blood test that could dramatically change the way they are able to monitor the recovery of their patients.