ACSH Science Dispatch

"You have cancer." It's a life-changing (and sometimes life-ending) development—a horrible piece of news no one is really ever prepared to receive. Are there better and worse ways to react? Can you do anything to improve your prognosis? Dr. Chuck Dinerstein answers these questions while recounting his harrowing experience with prostate cancer.

Social media is awash in testimonials from anonymous men who claim that testosterone-replacement therapy (TRT) helped them beat depression, sexual dysfunction, obesity and other maladies that often impact men as they age. Such compelling endorsements no doubt appeal to others who struggle with these critical health issues, but do they stand up to scientific scrutiny? Let's take a closer look.

Experiencing heartburn? Then consuming an acidic product like apple cider vinegar isn't the solution. The logic is simple: if you've got excess stomach acid, more acid won't help. But up is down in the world of alternative medicine, so let's take a closer look at the bad chemistry behind this "natural" treatment for acid reflux.

A groundbreaking retinal implant, PRIMA, is restoring central vision in patients with geographic atrophy (GA), an advanced form of macular degeneration that blinds roughly 1 million Americans. Unlike drugs that slow progression, this wireless neurostimulation system captures real-world images, projects them onto a subretinal chip, and electrically stimulates surviving retinal cells to mimic natura...

The trillions of microbes that live in and on the human body—collectively known as the microbiome—appear to have profoundly important effects on our health. This raises a potential concern: some of our most significant public health interventions—vaccines, antibiotics, sanitation—are designed to kill or limit exposure to harmful germs. Have we gone too far in our war against microbial exposure? Le...

How much fiber do you really need to maintain optimal metabolic health? Ferocious partisans on either side of the debate will give you opposing answers, each supported by superficially compelling scientific evidence. But who's actually telling you the truth? It's complicated.

In early October, Brazil faced a nationwide health emergency as adulterated alcohol, primarily white spirits like vodka and cachaça, was laced with toxic methanol—an industrial chemical used to falsely boost alcohol content. Authorities suspect organized crime diluted liquor to evade taxes or increase profits, triggering widespread contamination that sickened hundreds of people—with symptoms like...

Yet another junk epidemiological study claims that "ultra-processed" foods are addictive. The research is little more than a conclusion desperately in search of evidence. Let's take a look at its critical flaws.

We should genetically engineer ticks and release them into the environment, so they can infect people with a meat allergy. That's a real—and thoroughly wicked—proposal from two bioethicists at Western Michigan University. Join us as we dissect possibly the dumbest idea the academy has ever produced.

The digital revolution has radically shifted how we consume information. Reading lengthy think pieces and books has given way to limitless hours of doom scrolling and streaming. The widespread access to content enabled by internet access has many upsides, but are we really wired for our new tech-saturated environment? Let's take a closer look.

Last month, Health and Human Services Secretary Robert F. Kennedy, Jr. launched a new wave of hysteria by announcing that Tylenol could be linked to autism. The result was a predictable partisan squabble with both sides lining up behind their preferred studies and experts. Let's put aside the partisanship and try to make sense of the competing scientific claims.

Robert F. Kennedy Jr.'s supporters are eager to rein in direct-to-consumer pharmaceutical ads, claiming they mislead Americans about important health topics. But this anti-pharma coalition faces an awkward dilemma. After pushing regulatory rollbacks at FDA last year, they're now hindered by the very limitations on agency authority they demanded. Do we need to ban pharma ads, and is there a...

Join Cameron English and Dr. Chuck Dinerstein on Episode 135 of the Science Dispatch podcast as they discuss: Genes and heart health: Is there a specific gene that increases heart-disease risk in black people? More importantly, does that knowledge improve our ability to treat individual patients? Fragmented health care : Why is medicine so compartmentalized—divided into isolated specialties that t...

In the last four years, 27 US states have enacted bans or severe restrictions on so-called "gender-affirming care" for children—a marked increase from just one state in 2021. Some experts say the rapid shift in the legal landscape is premature because science has yet to provide a definitive answer about the risks and benefits of the drugs and surgeries utilized to transition children. Do...

“The stricter the law enforcement, the more dangerous the drug.” That’s how ACSH advisor and Cato Institute senior fellow Dr. Jeffrey Singer describes the iron law of prohibition, which he argues is driving America’s overdose epidemic. How do we reverse this alarming trend? Legalize all drugs. Dr. Singer joins us on a special episode of Science Dispatch to make that case.

You asked, we answered. Join Cam English and Dr. Chuck Dinerstein on the latest episode of Science Dispatch as we tackle your questions about health and medicine. This week, we examine the risks and benefits of protein supplements, caffeine pouches and cold plunges.

The use of a newer class of opioids, nitazenes, is growing across the US. Once rarely seen in illicit markets before 2019, the drugs have been found on nearly every continent at this point. Their elevated potency—250 to 900 times stronger than morphine for the most common nitazene—makes them far deadlier than heroin and fentanyl. Can we slow or stop the use of these opioids before they do more dam...

Eating more calories earlier in the day may improve your insulin sensitivity, boosting your metabolic health and aiding weight management. Was "breakfast like a king, dinner like a pauper" right all along? Maybe. Recent genetics research might help validate this age-old nutritional wisdom.

Americans are regularly exposed to low levels of radiation during CT scans, fueling media speculation that this routine medical procedure is driving a cancer epidemic. Is there any truth to the CT scan-cancer association? Let's look at the data.

Health and Human Services Secretary Robert F. Kennedy, Jr. is once again warning about the supposed dangers posed by mercury-containing vaccines. "I’m proud to finally deliver on a long-overdue promise: protecting our most vulnerable from unnecessary mercury exposure," he tweeted in early August. Kennedy was celebrating the removal of the preservative thimerosal from a small fraction of...

A growing body of research suggests that your gut microbiome can influence your health in a variety of subtle but important ways, and the foods you consume can have an upstream effect on the health of these trillions of microbes residing in your digestive system. An ACSH reader asks whether the widely used sweetener high fructose corn syrup should be avoided for that reason. Let's take a look.

Smoking kills hundreds of thousands of Americans annually. As this death toll mounts, studies continue to show that nicotine vaping is significantly less harmful than smoking and far more effective than FDA-approved cessation therapies like nicotine gum. Why, then, do so many public health experts malign vaping as a threat? Let's take a closer look

America's political debate over gun violence is a perennial food fight about the ethics of restricting access to firearms. While this makes for entertaining news clips on X, it doesn't get to the heart of the problem—namely that gun violence isn't monolithic. Some populations are more likely to commit homicide while others are more inclined to suicide. Stemming the country's violen...

The White House recently disclosed that President Trump experiences chronic venous insufficiency, possibly intended to head off concerns that he suffers from a serious age-related health condition that could impair his ability to govern. This raises an important question: are high-level government officials entitled to medical privacy when their illnesses could affect their decision-making ability...

Will chronic cardio or regular weight-lifting sessions add years to your life? Conventional wisdom says "yes," though emerging research suggests that your exercise habits and your lifespan are more heavily influenced by your genetics than previously thought. Let's untangle the latest knot in the nature vs. nurture debate.