Clinical guidelines are increasingly influential but they're written by experts in the field. Are guidelines a faithful compilation of evidence, or instead, just biased, perhaps self-serving, self-regulation? Dr. John Ioannidis, one of medicine's important voices, weighs in.

The Trump Administration believes that TV ads for pharmaceutical drugs should display the list price. This helps toward lowering the cost of healthcare. However, officials might want to consider banning direct-to-consumer advertising altogether.

With continued refrains of "too many" or "too few" being applied to manners of birth, which often serve to shame or assign blame, the focus is on the wrong issue. A new study on delivery mode helps inform us on this topic.

Researchers in New Hampshire, citing a trend of warmer winters over the last decade, found that 70 percent of moose calves that were monitored between 2014-16 had died. For nearly all of them, the cause of death was attributed to the dramatic rise in winter ticks, which feast on the calves' blood.

As if hospitals aren't bad enough, a really dangerous bug called Clostridium difficile is all over the place. And this bug, more commonly known as (C. diff), is not so easy to kill. Researchers looked at what happens when you wash contaminated sheets. The expression "it call comes out in the wash" does not apply.

Genetic manipulation can be a force for good, but some voices raise concerns. Not about the unintended consequences, but about their possible, darker uses, as weapons.

The results of a new study are encouraging for those who wish to continue driving, but have been ambivalent about having the procedure. Older drivers who underwent cataract surgery lowered their crash risk by 61 percent.

Regardless of what postmodernists say, there are real, objective, measurable biological differences between men and women. That's why sports are segregated by sex.

When what's absent in a story carries equal or more weight than what is actually reported, the damage goes beyond ratings. It undermines public health.

Sometimes taking a second drug can have a profound effect on one that's already being taken. That's because it can cause abnormally high or low blood levels of the first drug. This is known as a drug-drug interaction. Opioids are used as an example of how this works.