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The Orlando nightclub attack on June 12 was among the deadliest in American history, and it was the 133rd mass shooting to take place in the United States this year alone.

Image: Ozbolat Lab / Penn State

Engineers have demonstrated that strands of cow cartilage can substitute for ink in a 3-D bioprinting process, which opens a door to creating cartilage patches for worn-out joints.

1. Greenpeace Executives As Characters From "The Godfather" - "The Godfather" is the seminal American movie about an Italian mafia family. It is said that MAFIA is an acronym for Morte Alle Francia Italia Anela, basically 'the death of France is the song of Italy' - but Greenpeace loves France, it's science and the bulk of humanity that don't cave into their demands they want to kill off.

A controversial recent hypothesis is that the use of non-nutritive sweeteners can lead to obesity because they "uncouple" the sense of sweetness from calorie intake. But a recent study failed to replicate the work on which that theory rests. So once again, calories count!

It has become increasingly tricky for Medicare recipients to find doctors who will accept them as patient. The paperwork is crazy, and the reimbursement is also crazy, but in the other direction. Something's gotta break. How will this play out?

For those of us who partake, drinking alcohol is often seen as a balancing act, weighing the pleasures against the pains. Government regulation is often seen the same way, balancing an individual's pleasure and freedom versus the cost of crime and harm to health. But this approach can often lead to bad alcohol policies that fail to strike the right balance.

How does one get busy college students to make healthy food choices? Is it enough to provide nutrition label information, and where should such information be placed? A new study provides some clues, but from a health awareness standpoint the results are somewhat disappointing.

NRDC ceaselessly drones on about minute quantities of "endocrine disrupting chemicals" in our bodies. But THC from marijuana affects all sorts of hormonal systems, and you get plenty of it from smoking a joint. Not a word from the group on that. Are they stonewalling?

Joe Biden has good intentions, and it's easy to sympathize with the Vice President's personal pain and frustration. However, threatening and pointing fingers at the scientific community is often counterproductive. If Dick Cheney had similarly threatened to pull funding from scientists, how would the public and media have reacted?

Dr. Alex Berezow joined ACSH as Senior Fellow of Biomedical Science in May 2016.

Obesity is known to raise a woman's risk of developing breast cancer, and in some cases that cancer can recur even after successful treatment. An investigation will examine whether weight loss in obese women can decrease the rate of such recurrences.

Although many in the scientific and medical community were nervous when Andrew Wakefield's movie was released, we can all relax now. His slogan -- “The film that they don’t want you to see” -- seems to have backfired because ... virtually no one went to see it. Only 19,570 tickets sold and flimsy flick grossed just over $150,000 -- chump change in Hollywood.

Golden Rice, a vitamin-fortified product, is clearly needed by millions of poor children, which shows that environmental groups opposed to it such as Greenpeace are in a war on developing nations. They are involved in what Nobel Laureate Sir Richard Roberts calls a "crime against humanity."

If you get goose bumps every time you hear the sound of nails on a chalkboard, you aren't alone. But scientists say it's not the high-pitch tone that makes us cringe, as previously thought.

Now that Jason Day, the world's No. 1 golfer, will skip the Rio Olympics due to concerns over the Zika virus, given the overall exodus of golfers it seems like it's now an appropriate to ask this simple question: Why are pro golfers the predominant group of athletes bailing from the Games? One who withdrew gives us some insight.

So you don't want to smoke marijuana, nor eat it in calorie-laden junk food. Would you prefer a cannabis beverage? These just might be coming down the pike soon, if certain entrepreneurs have their way.

Five percent of children have food allergies. And, although they can be managed in schools over the academic year, what about when those kids go to camp? It's an important consideration as well, because a simple mixup of lunches can produce dangerous health consequences.

If mosquitoes are about to become the big threat for Zika transmission in the U.S., the obvious solution to prevent this from occurring is to kill these ecologically-useless bugs using pesticides. Yet environmentalists have already begun invoking "Agent Orange" and claiming if we kill these pests, we're going to get prostate cancer -- because that is the kind of scary thing they do to raise money.

Tony Robbins is a motivational speaker and self-help guru who believes in "magic moments." He encourages guests to walk over a pit of burning coals, which often isn't as magical as planned.

Vermont's somewhat capricious GMO labeling law is set to go into effect next week and one company intends to comply with it by removing its products from store shelves. Coca-Cola is advising stores that individual cans and bottles will no longer be available to Vermont consumers, at least according to one tiny local outlet I had never heard of before today.

A recent paper in JAMA Internal Medicine was essentially little more than a hit piece on physicians. The authors claim that doctors will write prescriptions for more expensive drugs if they attend a seminar about that drug, and get a cheap meal. But the only thing cheap here is the standards of the authors. Their paper is a travesty.

First, Pepsi bought into anti-science claims about aspartame. But after making a change there was no mass exodus from Coke, and sales of Diet Pepsi actually went down over 10 percent in the first quarter of this year. So now Pepsi executives are swallowing hard, and doing the scientific "Walk of Shame" back toward aspartame.

Anything that reminds people to get up and move is a good thing, but will they actually do it? And once the novelty wears off, do we slide back into our lazier ways?

Would you douse a scalpel in alcohol and cut yourself open just for the purpose of implanting a piece of technology under your skin? Probably not, but there is a community of people -- "biohackers" -- who do just that. And they may be important to the future of science and technology.

Now that a Vermont law requiring labeling of GMO foods is about to take effect on July 1, the Senate has decided to act to prevent a plethora of state laws to confuse the issue. But wait! We can't really say that the Senate's bill will necessarily clarify anything.