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Some bacteria have become resistant to many antibiotics, leading many health officials to express concerns that soon we may not be able to cure diseases that used to be susceptible to such drugs. Another possible reason for this resistance is the non-therapeutic use of antibiotics in food animals.

The CDC reports that all three reportable sexually transmitted diseases -- gonorrhea, chlamydia and syphilis -- are on the rise, some alarmingly so. One health-care advocate says part of the problem is that effective HIV drugs are creating a climate of safety, and that "we're a victim of our own success.

Antibiotic resistance and the possibility of approaching the end of the antibiotic era sounds fairly apocalyptic. A recent study reveals a new gene, MCR-1, that allows for a common bug, Eschirichia coli, to become resistant to polymyxin antibiotics. These are the last line of defense against infections with E. coli. This has pandemic potential.

Since 1965, U.S. births by cesarean section have increased seven fold, from 4.5 percent then to 32.2 percent of all deliveries in 2014. While this significant trend does not appear to be increasing maternal or neonatal mortality, the issue of why have C-sections have become so popular remains up for debate.

A new study from Chinese researchers found a small, but significant, benefit among smokers trying to quit who have a particular gene variant related to the dopamine reward system. The benefit is not large enough to give any smokers comfort: just don't even start.

Yesterday at 1 PM Eastern, the ABC News Medical Unit created a social media event to talk about supplements. Along with the American Council on Science and Health, participants included the National Institutes of Health, Stanford University and others.

Genetic engineering has provided many benefits: crops resistant to insects and pesticides; rice producing vitamin A; bacteria that produce human insulin; and potatoes that are less susceptible to blight -- all by adding genes. This new advance involving pigs is done by using gene deletion.

Activists know they have Chipotle on the run - so now they are doubling down on their demands.

If the American Cancer Society recommends mammograms every two years for normal-risk women over age 55, does that mean they only care about money?

As measured using objective reviews and standardized parameters, a large survey revealed that an astounding 55 percent of doctors are beaten down by their profession, a major increase over the prior three years. It is likely this trend will get worse, and both doctors and patients will suffer.

A new study from a respected Swedish institute tries to implicate sweetened drinks as a cause for heart failure. But even a cursory review shows that the conclusion is utter nonsense. As it turns out, what these researchers really provided was an opportunity for us all to see what a very flawed study looks like.

The development of antibiotics and other antimicrobial therapies is arguably the greatest achievement of modern medicine. However, overuse and misuse of antimicrobial therapy predictably leads to resistance in microorganisms.

A South Korean court ruled that a plant worker's death from ovarian cancer can be causally attributed to exposure from the "carcinogens" formaldehyde and phenol. But there is no evidence that phenol is a carcinogen, and her duration and level of exposure are also not realistic causes of her fatal illness.

Three-dimensional bioprinting is offering science a real hope of creating organs needed for transplants. With about 75,000 patients waiting on any given day, and an average of 22 people dying daily while hoping to receive a transplant, the need is acute to say the least.

In science, a product passes reasonable safety tests and is deemed safe until shown otherwise. To modern food activists, alleging food is unsafe is a mercenary tactic to sell new fads.

Telemedicine, or medical consultations via the internet, is aiming to change the landscape of healthcare delivery. While it has come through on many of its promises, it still may be too early to tell if any of these changes will be effective in the future.

A new year and new you. For most of us looking to shed a few pounds this means one thing: time to diet. But this go 'round, instead of thinking about what you cannot eat, focus instead on embracing a better mental approach when you come to the table.

While many couples feel they should hold off somewhat when trying to conceive again after a miscarriage, a new study shows that there's no need to wait. Indeed, those who tried again within three months had a somewhat better success rate than couples who waited longer.

Sodium restriction has been used to help treat heart failure for many years. But new data suggest that the strategy may not be effective in preventing either additional hospitalizations or death. Could it be that salt isn't the villain we've come to think it is?

Let's face it: New Years resolutions normally happen after the New Years Eve countdown, which means the night before you're probably still practicing old habits

What exactly is missing from your diet that must be supplemented by an anabolic steroid? Not sure? Well, we don't know either. To find out, go ask Orrin Hatch. The longtime Utah Senator co-crafted the law that allows this insanity to occur.

A new report by the Centers for Disease Control reveals that the number of heart-failure-related deaths is on the rise, in contrast to the slow, steady decline seen for over a decade. Another key finding was that the death rate was higher for blacks than for whites or Hispanics.

The hoverboard, made popular in "Back to the Future II," was a futuristic twist on the skateboard used by protagonist Marty McFly in the first film. Today, we have a two-wheeled electrical scooter that rolls over concrete oh, which also occasionally catches fire. We advise you steer clear of this so-called "hot" Christmas gift.

A new study shows that adding alternating current electrical field application superficially to the brain area near a brain cancer, glioblastoma, along with standard chemotherapy, leads to a survival and progression-free benefit.

New York's Compassionate Care Act recently became state law, allowing dispensaries to open with medical marijuana only for those with well-defined diseases and conditions. So if Smoky Sam shows up there hoping to just get stoned, he'll be bummed out since the rules make it nearly impossible to get pot just to party.