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About 55 million people worldwide are living with dementia, according to the World Health Organization. The most common form is Alzheimer's disease, an incurable condition that causes brain function to deteriorate.

A protein in the immune system can be manipulated to help overcome bowel cancer, according to new research from The Australian National University (ANU).

As people age or become ill, their immune systems can become exhausted and less capable of fighting off viruses such as the flu or COVID-19.

Scientists at La Jolla Institute for Immunology (LJI) have found direct evidence that exposure to common cold coronaviruses can train T cells to fight SARS-CoV-2. In fact, prior exposure to a common cold coronavirus appears to partially protect mice from lung damage during a subsequent SARS-CoV-2 infection.

According to a study led by researchers at Washington University School of Medicine in St. Louis, diagnoses of breast cancer have increased steadily in women under age 50 over the past two decades, with steeper increases in more recent years.

People with obsessive-compulsive disorder (OCD) may have an increased risk of death from both natural and unnatural causes than those without the disorder, finds a study from Sweden published by The BMJ today.

Routinely referring patients to a tailored programme of physiotherapy after a dislocated shoulder is no better than a single session of advice, supporting materials and the option to self-refer to physiotherapy, finds a clinical trial published by The BMJ today.

UK law changes pose a threat to the security of messaging apps - and therefore their use in the NHS. In The BMJ today, doctors warn that patient care will suffer if they can no longer use apps such asWhatsApp and Signal to share information.

Around one million individuals worldwide become infected with HIV, the virus that causes AIDS, each year.

Tisch Cancer Institute researchers discovered that a certain type of chemotherapy improves the immune system's ability to fight off bladder cancer, particularly when combined with immunotherapy, according to a study published in Cell Reports Medicine in January.

Researchers in the RIKEN Center for Brain Science (CBS) examined the genetics of autism spectrum disorder (ASD) by analyzing mutations in the genomes of individuals and their families.

Following federal approval for over the counter emergency contraception in 2006, emergency departments across the U.S. saw dramatic decreases in related visits and medical charges, a new study suggests.