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What physical risks do you run during a race of this length? Since high-mileage training can drain the body of vital nutrients, the short answer is: quite a few. Here's some insight into this punishing endeavor.

Unsolicited curbside consultations of medical professionals are quite common. As are self-referrals. Such scenarios can yield unfavorable results.

A new study in Nature Sustainability confirms what we've been saying for a long time: Organic farms produce fewer crops and are worse for the environment. Don't build more of them.

If vaping is a gateway to smoking, where are all the new smokers?

Heroes aren't always cops, soldiers or scientists. Sometimes they are the wives of scientists. Here's one worth remembering.

The siren song of precision medicine is lost in the translation, from the laboratory to the bedside. Two studies suggest that precision medicine is more an aspirational term than reality.

The deliberate and malicious ignorance of the anti-GMO movement must be resoundingly defeated, with its lies tossed into the dustbin of history.

It's time to recognize and champion the invaluable, grueling work of neonatal nurses.

Caravaggio famously painted various biblical scenes, such as the beheadings of John the Baptist, Holofernes and Goliath. Though the artist did not meet such a violent demise in the early 17th century, he may have suffered an unpleasant one: Sepsis due to Staphylococcus aureus.

In chemo suites all over the country, there are bell-ringing celebrations when a patient's treatment ends. That's nice for the "graduate," but not so much for the terminally ill who are left behind. This is often a cruel and insensitive practice, and it needs to stop.

When it comes to food and dieting, sometimes we can trick ourselves to believe what we want to believe. Specifically, weight-conscious people can experience what psychologists call "negative calorie illusion," the belief that an "unhealthy" meal can be made less caloric if a "healthy" side dish is added. Pretty fascinating.

There are two ways that the media get meta-analysis claims wrong. And here's how to spot them.

Marketing executives at General Mills insisted that if their personal Twitter feeds were evidence, people were in a panic about GMOs. Then they discovered the awful truth.

This study shows that the crisis in overdose deaths is, unfortunately, not new. It goes back nearly 40 years. Three graphs reveal a tapestry over time of drugs, demographics and geography. It's not simply a new problem due to prescription drugs.

The reason is that ligaments are poorly vascularized. In other words, there aren't many blood vessels to provide nutrients for the ligaments. And without nutrients tissue repair is not possible. Oftentimes, ACL tears require a surgical graft.

Making smart choices requires correct information. But it's not so easy telling facts from fiction, especially since there's a whole lot of money being made by those spreading misinformation. What's more dangerous, sun or sunscreen? Pot. or the plastic container it's stored in? Want to know how to tell? Read this.

With Americans living longer than ever, more and more attention is being paid to how adults manage potentially-fatal diseases and end-of-life issues. Here are two cases in point, both focusing on the mental – not medicinal – aspects of this topic: a recent book about embracing mortality, and the growing prominence of so-called "cancer coaches."

Many well-intended efforts that fixate on bias can achieve the unintended consequence of imposing it instead.

Contrary to wide-eyed speculation and fearmongering, coffee is not going extinct. Coffee bean production is up, and prices are down.

Rather than rehash the disclosure of conflicts that led to the downfall of the now-former Chief Medical Officer at Sloan Kettering Cancer Center in New York, consider how this episode reflects a more common problem of "entitled" powerful people. Here are two remedies that don't require investigations and can possibly help correct medical research's vacillating integrity dilemma.

A new paper throws every journalism clickbait notion into one epidemiological claim. Take a look.

The gloves are off in a battle to control the sector. Nearly 83% of hospitals are charging over twice the cost for medicines, with a majority of mark-ups between 200 and 400%. Will any fixes in store actually help patients?

GMOs are completely safe. Insisting otherwise is intellectually indefensible. Yet, the University of California-San Francisco remains a stubborn holdout against reality. UCSF is nothing short of the academic home of the anti-GMO movement. In fact, the university is so dedicated to this position that it openly collaborates with conspiracy theorists.

With a growing number of teenage pitchers having surgery because of elbow-joint overuse, the former Major Leaguer can no longer observe this trend without wincing. And he has an urgent message for parents whose kids concentrate on playing one sport nearly year-round. Spare your still-developing teen a lifetime of pain and discomfort: Stop focusing on a single sport.

Washington Post published a bizarre, long conspiracy op-ed about what scientists know - and the sources were a statistician, an environmental lawyer and a sociologist. Our other media coverage last week was more sane.