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For those who want raw fish, such as sushi, freshness is absolutely mandatory. However, old fish is still problematic even if cooked. So a group of Taiwanese researchers developed a semiconductor sensor that detects fish freshness in 60 seconds.

Fourth grader Savannah wants to know: How does electricity always know which path to take? The topic is complex but here are just the quick basics.

With criminal charges made public in the untimely death of a Penn State student, it's clear health misperceptions exist on college campuses. Here, we clarify some of those – while urging all universities to reassess and improve their initiatives. 

Visual impairment among preschool children is a problem that's had profound academic and social consequences. It could be easily corrected with screening that's both accurate and – for a change – not expensive. 

Astrophysicist and science communicator Neil deGrasse Tyson recently appeared on Conan O'Brien's TV show. As usual, he was engaging, charismatic and amusing. But when Dr. Tyson discussed microbiology and philosophy that's when his stars fell out of alignment.

If you remember 1982, at that time AIDS was a death sentence – and a gruesome one at that. But a recent Lancet paper shows how far we've come. And the difference between what Randy Shilts describes in his book and today is nothing short of miraculous. 

Regarding the issue that, “patients have long been aware that many unseen dollars drive medical decisions and events,” the sunshine of disclosure has been recommended as the cure. But does it work? 

A San Diego pharmacist, concerned for those shouldering the high cost of the drug injectors, is helping them by identifying the product's effective shelf life. And at at cost of roughly $600 per pair, knowing how long EpiPens will actually work can translate into real savings for families on a tight budget.

One final observation on our great post-war successes in controlling malaria by targeting its vector, the Anopheles mosquito. By using that most marvelous insecticide DDT, we were beginning to gain the upper hand in our conquest of malaria as clearly demonstrated in the table below.

Country

Malaria occurrence per annum prior to introduction of DDT

There's a camp that says innovation in drug development comes solely from academia and government labs. Another says the pharmaceutical industry invents drugs, without academic involvement. Both camps are wrong. Usually, both academia and industry contribute to drug discovery. An example is the long, grueling battle against hepatitis C. 

American Council Board Advisor Jerry Cutler takes a look at medical situations that should prompt us to re-evaluate the application of the linear dose-response model.

Statins, despite their overwhelming benefit to cardiovascular health, carry around a perennial black eye – they cause muscle pain. This longstanding "fact" is a result of a notoriously inaccurate type of study called an observational study. Guess what happened when another study was done properly? 

By demonizing biotechnology and conventional agriculture, Whole Foods has profited handsomely. But with its recent financial struggles, it would be nice if the sales downturn was the result of Americans waking up to the fact that the chain has been lying to them for years.

Regardless of people's views on capital punishment, it's unlikely that many would approve of chemically torturing prisoners to death. But because European drug companies now refuse to sell U.S. prisons drugs that can be used for lethal injections, some have tried using untested alternatives for executions. The results have been horrific. The reason? Pharmacological ignorance. 

Following the multi-year drought in the west and northwest, the question being raised is whether the mighty sequoia – which requires massive amounts of water – has been weakened or otherwise compromised. While there's no precise answer to that now, arborists are seeing signs that water depletion could be a real threat.

As if the U.S. opioid overdose crisis isn't bad enough, we have another killer on the streets. One of its components is called U-4700, a drug Upjohn was trying to make into a painkiller decades ago. It never made it to your local drug store, but it's now a big hit at the "street pharmacy." Worse still, a 10 year-old could make it. 

If your only source for news comes from the idiots at Mother Jones or Sourcewatch, you probably don't know much about the real American Council on Science and Health. In that case, you believe their manufactured claims – that we are some kind of sinister group organization – and not that we want to give readers useful information.

Most of us stay away from mushroom hunting since we are well aware of the dangers. There are certainly more poisonous mushrooms in the woods than edible ones. But mushroom hunters will tell you that Morels are one of the most popular and most delicious edible mushrooms you'll find in the Springtime.... If you can find them —they're quite elusive. 
So if you're going to hunt, here's what to look for.
 

Immunology studies the way we maintain our body’s integrity – “immunity’s central motif” – as well as our definition of self. Differentiating our self from "other" has many scales, and it's been used to separate tribes, ethnicities, nations. So in addition to cells, can immunology also help us understand the interactions of humans?

When it comes to finding new antibiotics, no place is too weird to look. Three separate teams of researchers have identified potentially useful antibiotics from some of the strangest places imaginable: Sponges, sea snails, and marine worms.

Since I believe laughter is often the best medicine, I didn’t have to look very far to find funny movie scenes that also delivered meaningful medical lessons.

Antibiotic resistance is a crisis. One of the driving forces is that the drugs are overprescribed by primary care physicians. Although there are efforts to minimize the unnecessary antibiotics being given to those who don't need them, a new study shows that they're just not working.

Once again, the Ramazini Foundation published a study suggesting that the artificial sweetener sucralose causes cancer —specifically blood cancers — in mice. But a panel from the European Food Safety Authority analyzed that study and found that its conclusions were spurious and in no way should be construed to indict the sweetener. Can we say we told you so?

We are being confronted with very important questions about the anti-GMO movement and Mr. Ruskin, an anti-GMO activist who operates the website U.S. Right to Know. Are anti-GMOers also anti-vaxxers?2 If not, then why do they take money from anti-vaxxers?

Glucose and fat are essential to powering muscles. But glucose is the only energy source that fuels the brain and sustains motivation. Scientists believe that if glucose depletion could be reduced, "hitting the wall" – or for marathoners, giving up – could theoretically be delayed. A recent study examined this glucose-brain connection.