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This method of communicating risk led to confusion and some hostile reactions. Scientists can explain risks of cancer and other diseases in several ways; some are easier to understand than others.

Researchers have identified lack of sleep as a cause of serious disorders ranging from diabetes to high stress levels. The results show that it is taking a huge toll on the quality of life -- and the health -- of millions.

For some school children, PE is the best lesson of the week – a chance to leave the desk behind, get outside, and enjoy a run around with friends.

Judging by some media headlines, you’d be forgiven for thinking researchers, clinicians and the Australian Dietary Guidelines have it all wrong when it comes to eating red and processed meat:

Nearly one in three low-income people who enrolled in Michigan’s expanded Medicaid program discovered they had a chronic illness that had never been diagnosed before, according to a new study.

Decline in brain function often occurs as people age. People often worry that declining brain function is an inevitable part of growing old and will lead to dementia, but it is not. Many people do not experience age-related cognitive decline.

Highlighting the tastiness of healthy food can help us make better food choices, researchers report.

When we hear about the horrors of industrial livestock farming – the pollution, the waste, the miserable lives of billions of animals – it is hard not to feel a twinge of guilt and conclude that we should eat less meat.

In megacities across the world, including Mexico City, Jakarta, New Delhi, Beijing, Los Angeles, Paris and London, humans are polluting air at a rate that Earth can no longer sustain.

Common herbs, including lavender, fennel, and chamomile, have a long history as folk medicines used to lower blood pressure. New research explains the molecular mechanisms at work.

As the flu season gets started, what can you do to protect yourself and stay healthy?

A few weeks ago, I hurt my back. I pulled a muscle and when it happened, it literally knocked me off my feet. It took me several minutes to get back up off the floor and the pain was like nothing I'd ever felt in my life. However, with my usual positive attitude, I thought: "No problem, this will be healed in a day or two."

Often unaware of the dangers, some spice processors in Bangladesh use an industrial lead chromate pigment to imbue turmeric with a bright yellow color prized for curries and other traditional dishes.

A child sucks her thumb for self-comfort. An adult touches several fingers to his forehead or leans a cheek into her balled-up fist as a response to cognitive stress. We cross our arms or place our hands on our hips when we seek safety and grounding. None of us are explicitly taught to use these postures as cop­ing mechanisms, yet when the need arises, we fall back on them without con­scious effort.

Our digestive tract hosts trillions of microbes, mainly bacteria, that help us digest food, make vitamins, strengthen the immune system, protect against germs, and produce molecules that affect many aspects of our health.

Dr. Sanjay Gupta looks into what researchers are doing to combat a flurry of vaping-related illnesses. 

This past summer the French food and drug office, the Agence Nationale de Sécurité du Médicament, greenlighted limited medical cannabis trials inside France, something that’s been illegal since 1953.

For those in the military, high levels of dedication and commitment are expected from day one on the job – and this includes the risks that come with combat deployments.

Since the late 1970s, a diversified diet has been considered an essential component of healthy eating. Ensuring a good balance of nutrients is crucial for people to stay healthy.

Why do we age? It’s a question that has had scientists scratching their heads for decades, but finally, we are starting to get some answers. Here is the story so far.

Widespread antibiotic use is largely to blame for the emergence of antibiotic resistant bacteria, which is currently one of the biggest threats to global health. 

Physical inactivity is a global health problem. But despite overwhelming evidence that regular exercise is highly beneficial, the challenge of encouraging people to be more active remains.

Despite the many groundbreaking medical advances of the last century, there are still some conditions that continue to perplex scientists.