Of the 4,000 Americans waiting for heart transplants, only 2,500 will receive new hearts in the next year. Even for those lucky enough to get a transplant, the biggest risk is the their bodies will reject the new heart and launch a massive immune reaction against the foreign cells. To combat the problems of organ shortage and decrease the chance that a patient’s body will reject it, researchers have been working to create synthetic organs from patients’ own cells.

DeepMind now wants its health app to become an AI assistant for nurses and doctors around the world.

Adults who cut carbohydrates from their diets and replaced them with fat sharply increased their metabolisms.

Study of remote communities in Venezuelan rainforest sheds fresh light on hypertension

Researchers have that found that 3D printers spew tiny particles into the air as they operate, though the quantity and nature of these potentially toxic aerosols are poorly understood. A new study identifies a startling variety of these emissions, and the conditions under which they’re produced.

Micron CEO Sanjay Mehrotra sees smart loos in our future and is anxious to sell the chips they will need.

Stay up nights with the British writer as she takes on insomnia.

A mind-controlling parasite found in cat feces may give people the courage they need to become entrepreneurs, researchers reported Tuesday. They found that people who have been infected with the Toxoplasma gondii parasite are more likely to major in business and to have started their own businesses than non-infected people. The parasite, which makes rodents unafraid of cats, may be reducing the fear of failure in people, Stefanie Johnson of the University of Colorado and colleagues said.

The cause of a rare polio-like disease continues to elude public health officials even as the number of U.S. cases grows. Confirmed cases of acute flaccid myelitis cases have risen to 90 in 27 states, out of a possible 252 under investigation, the U.S. Centers for Disease Control and Prevention announced November 13. That’s up from 62 confirmed cases out of 127 suspected just a month ago (SN Online: 10/16/18). There were a record 149 cases in 2016.

Our weight might not be controlled solely by what we eat. When we eat, and when we get to sleep, may be just as important. A small study published this week in Current Biology found people who had been thrown off their circadian rhythms burn more calories in the late afternoon and evening hours than in the morning, when calorie burn is at its lowest. Later in the day, calorie burn increases by 10 percent, or about 129 calories.

Football announcers care about brain injuries. But they often lack the vocabulary to talk about them. Chris Nowinski has a new program that’s trying to help them.

Stigma often prevents patients from acknowledging an Alzheimer’s diagnosis. A series of high-profile disclosures may help change that.

Cigarette use among American adults is at the lowest it's been since the Centers for Disease Control and Prevention started collecting data on the issue in 1965, according to a report released Thursday. "The good news is that cigarette smoking has reached unprecedented lows, which is a tremendous public health win, down to 14 percent from over 40 percent in the mid-1960s," said Brian King, senior author of the report and deputy director for research translation at the CDC's Office on Smoking and Health.

New research is zeroing in on a biochemical basis for the placebo effect — possibly opening a Pandora’s box for Western medicine.

In a study of proteins historic in its scope, researchers at Oregon State University have pushed closer both to a vaccine for gonorrhea and toward understanding why the bacteria that cause the disease are so good at fending off antimicrobial drugs. The findings, published in Molecular & Cellular Proteomics, are especially important since the microbe, Neisseria gonorrhoeae, is considered a “superbug” because of its resistance to all classes of antibiotics available for treating infections.

Many people routinely take nutritional supplements such as vitamin D and fish oil in the hopes of staving off major killers like cancer and heart disease. But the evidence about the possible benefits of the supplements has been mixed. Now, long-awaited government-funded research has produced some of the clearest evidence yet about the usefulness of taking the supplements. And the results — published in two papers — are disappointing.

HPV vaccination rates are still too low to cut cervical cancer cases as much as is possible in the United States, a new report warns. While HPV, or human papillomavirus, vaccination has increased in recent years, rates remain well below the federal government's Healthy People 2020 goal of 80 percent of age-eligible adolescents, according to the recent report.

The long read: When high doses of painkillers led to widespread addiction, it was called one of the biggest mistakes in modern medicine. But this was no accident

By now you’ve probably heard that eating too much red and processed meat is bad for you. Not only is it associated with increased rates of coronary heart disease, stroke, and type 2 diabetes, but there is also convincing evidence that red and processed meat can cause cancer. The cancer agency of the World Health Organisation (WHO) classifies the consumption of red meat, which includes beef, lamb, and pork, as carcinogenic – or having the potential to cause cancer if eaten in processed form.

The research, published in Mucosal Immunology, found that the presence of intestinal parasites provides long-lasting protection against infection from other species of parasites in other organs. The Malaghan Institute of Medical Research's Dr Kara Filbey, said worms had evolved to manipulate their host's immune system, to prevent it from killing them.

An Oxford University study suggests worries about screen time causing a lack of sleep are overblown.

When you live with chronic pain, choosing when and where to experience pain can be a gift, and an act of control. By Ace Ratcliff.

The stillbirth of Journey Moon prompted sympathy—and a backlash. By Emily Shugerman.

Injuries can't heal without a constant influx of blood's key ingredient—oxygen. A new flexible sensor developed by engineers at the University of California, Berkeley, can map blood-oxygen levels over large areas of skin, tissue and organs, potentially giving doctors a new way to monitor healing wounds in real time. "When you hear the word oximeter, the name for blood-oxygen sensors, rigid and bulky finger-clip sensors come into your mind," said Yasser Khan, a graduate student in electrical engineering and computer sciences at UC Berkeley.

In early tests, this laser-activated silk and gold material held wounds together better than stitches or glue

A chemical that makes brain tumours glow could help surgeons safely remove brain cancer, a study suggests.

Fluorescent marker accumulates in the fastest-growing cells, helping surgeons pinpoint tumours and leave healthy tissue alone

The 1918 Spanish flu outbreak killed more people than both world wars. Don’t imagine such a thing could never happen again, says the Guardian columnist Martin Kettle

A University of Kent study into postnatal depression (PND) found the odds of developing this condition increased by 79% when mothers had baby boys compared to baby girls. Overall the researchers identified that women who give birth to males are 71-79% more likely to develop PND. Furthermore, women whose births had complications were 174% more likely to experience PND compared to those women who had no complications.

There's a bunch of gross stuff, besides human bodies, hiding under graveyards.

La Trobe leads international clinical trial.

From the data of more than 40 million births, scientists at Stanford have linked paternal age to birth risks, and even risks to the mother’s health.

The first Food and Drug Administration-approved drug containing an ingredient derived from the marijuana plant went on sale Thursday in the United States.

A small number of products labelled gluten-free on the supermarket shelf may not be what they claim to be, a new study reveals.

Exclusive: Simple act of breathing is killing 7 million people a year and harming billions more, but ‘a smog of complacency pervades the planet’, says Dr Tedros Adhanom