About 2,000 US babies are born annually without some portion of their limbs, potentially leading to a lifetime of pricey prosthetics.

Software subscriptions, licenses, and climate control systems add to 3D printing costs

Although the sharing of designs and reduced manual labor suggested the fabrication of prosthetics would be facilitated by 3D printing, particularly in developing regions, software and hardware requirements have posed hurdles to achieving this goal. While some insurance companies have refused to cover 3D-printed limbs, they are covered by Medicare.

Black Americans with diabetes have amputation rates three times higher than average

Annually, 130,000 US diabetics undergo amputations due to complications from diabetes, with many patients located in low-income and uninsured neighborhoods. More than half of US diabetics who lose lower limbs are not subject to pre-surgery angiograms, imaging that shows blood flow blockages to determine if (and where) amputation is necessary.

Mind-controlled bionic arms use nerve implants to restore sensation and movement

Unlike traditional prosthetics that rely on surface electrodes or mechanical parts, this system uses implanted titanium and nerve-connected electrodes to enable a seamless brain-to-arm connection. Patients train in virtual reality with their implanted signals before using the physical prosthesis.

Organ transplants can come with a price tag of more than $2M without insurance

According to 2025 report data that was graphically represented by Statista, average costs for organ transplants can be as steep as $2.3M for a double lung transplant and $1.9M for a heart. These figures are based on what was actually charged to insurance companies—not what individual patients paid. Following the actual transplant there are also additional costs associated with the procedure, including lifelong immunosuppressant drugs.

Implanted neurotechnology can leave users vulnerable when manufacturers go under

Despite providing relief from neurological conditions, patients are left stranded when the companies that make these devices shut down. The lack of regulation means patients often face technical failure, insurance battles, or risky surgeries to maintain their quality of life.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

736,900 cochlear implants had been implanted by 2020 worldwide

In the United States, roughly 118,100 devices had been implanted in adults by that point and 65,000 in children. These estimated figures come from the US Food and Drug Administration, which first approved cochlear implants for adults experiencing hearing loss in the mid-1980s, and collected reports from cochlear implant manufacturers approved for the US market.

Each day, about 60 US pregnancies end in stillbirth

This online memorial for families who experienced the unexpected death of a fetus 20 weeks or older is the result of ProPublica reporters inviting 60 families to share their baby's name and answer some questions about their unfulfilled wishes for their children. About 21,000 babies are stillborn in the US annually. About the same number of children die in the US during their first year of life.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Limb regeneration research may lead to treatments for arthritis

For scientists pursuing the cure for arthritis, the holy grail of discoveries lies in how to regrow healthy cartilage inside human joints. While this feat has so far resisted our best scientific attempts, there are plenty of other human tissues—such as the liver and fingertips—that will successfully regenerate.

Breaking down the knee's anatomy

The human knee is a remarkably complex structure carrying the full weight of the body throughout a person’s life while allowing a number of complex twists, flexes, and extensions. It's also one of the body's biggest weaknesses—the location of chronic pain and replacement surgeries for millions of Americans.

Phantom limbs were first documented in the 16th century by a French military surgeon

Ambroise Paré, the military surgeon, observed this phenomenon among soldiers who'd lost limbs, yet the term wasn't formally coined until hundreds of years later, by Silas Weird Mitchell, an American Civil War surgeon.

As of 2025, perfect synthetic replication of natural organs remains elusive

Advancements such as 3D printing muscles, performing vaginal reconstruction with colon tissue, and growing organs in a lab have shown promise, but artificial options and transplanting substitutions continue to exhibit functional and performance limitations compared to their natural equivalents.

In a first, eye prosthesis has restored sight to macular generation patients

In a clinical trial, 27 of 32 participants with advanced macular degeneration regained enough vision to read books, food labels, and subway signs about a year after receiving a prosthetic retina device. This is the first device to restore functional vision to patients with incurable vision loss, though in this case they can only see in black and white, with no shades in between.

One estimate values concierge services at $38.9B by 2032

Data Horizons Research put the value of this global market at $18.9B in 2021, but anticipates massive growth by 2032, with North America comprising the majority of the market. Chronic health conditions, their analysis suggests, will be a contributing factor to this growth as medically complex individuals seek more personalized care.

Fungal diseases cost the US around $19B annually

Estimates derived from health insurance claims, death certificates, and hospitalization data suggest that fungus is a significant medical issue. Each year, fungal diseases kill some 7,300 people—roughly the same number of deaths attributed to motor vehicles striking pedestrians. Around 130,000 people are hospitalized with fungal diseases, and the total national cost from fungal diseases is estimated to be about $19B—a figure that roughly matches Jamaica's entire gross domestic product.

Humans won't develop more than 5 fingers because it would impact too many body parts

All modern animals have five or fewer digits on each of their limbs. Roughly 348 million years ago, at least two species had eight: the Ichthyostega and the Acanthostega. According to Dollo's law, complex evolved features are very unlikely to recur in evolution. Researchers believe humans won't develop more than five digits because it would impact other body parts too much.

Generative AI may automate nearly 10% of tasks in the US economy

This automation is expected to impact both low- and high-wage roles, with those in customer service, food service, and office support being most likely to be affected. Large-scale investments in upskilling will be necessary to help individuals find new employment opportunities.

Why crash test dummies cost a million dollars

Crash test dummies are crucial in the fight to protect car passengers from potentially catastrophic crashes. So how are they made? And why are they so expensive? This 8-minute video breaks down the high-tech products—which can cost over $1 million...

How the rise of surgical robots affects medical education

Today's medical students are training in tools their predecessors may have only dreamed of or found locked in the pages of science fiction novels. This article explores the rising popularity and use of surgical robots and how these robots are...

Your feet can expand—permanently—due to pregnancy

A hormone called relaxin loosens tissues in the body to allow them to expand during pregnancy, affecting muscles and body parts—including the feet. The structural changes that occur in the foot as it expands are sometimes permanent. This article states that researchers have found as many as 61% of new moms did not have their foot sizes return to their prepregnant state. (Some users may encounter a paywall.)

Six-year-old boy in wheelchair surprises his family by walking at his graduation

The young boy was diagnosed with Noonan syndrome, a rare genetic disorder that impacts mobility and development, at just 2 months old. He usually needs a wheelchair or walker to get around, but he shocked and thrilled his parents by standing up to receive his kindergarten diploma.

Americans think they need $1.46M to retire comfortably in 2026

That's far less than what many Americans have saved. While the median retirement savings for those ages 65 to 74 is $200K, the mean is about $609K.

Explore the 2025 Uber lost & found index

A chainsaw. Ten live lobsters. A mannequin head with human hair. These are just a few curious items passengers left behind in Ubers this year, according to Uber itself. Uber is among the largest gig economy platforms in the US, with a valuation of roughly $150B as of 2024.

More than $100M in scholarships goes unclaimed each year

More than $50B in scholarships are awarded each year, though analysts estimate more than $100M goes unclaimed due to a lack of qualified applicants. That fact should be unsurprising given the dizzying number and criteria for thousands of applications. This portal from the US Department of Labor lets you quickly search more than 9,600 scholarship opportunities by program, eligibility criteria, and more.

US child care costs, mapped

It's no secret that child care in the US is expensive, but this map provides more color to that observation by showing the average annual price of child care in licensed child care centers for infants, by state, in 2023. South Dakota, for instance, had the lowest infant child care cost at $7,862 per year. See how the rest of the states fared here.

Graduate/professional schools often cost more to attend than undergraduate schools

Grad and professional school cost more than undergraduate schools. Individuals with advanced degrees owe many times more than graduates with bachelor’s degrees. For example, the average student debt held by a PhD was around $125K in 2023, while those with undergraduate debt averaged $37K.

Bone marrow (soft tissue found inside certain bones) generates roughly 500 billion new blood cells each day

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

11 people died from firework injuries in the US in 2024.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

Telehealth demand for GLP-1s for weight loss is booming as consumers seek easier access.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

In 2019, a laptop loaded with six of the worst malware in history and described as 'an exhibit of historical weaponry' sold for $1.3M.

Experimental hantavirus vaccines and therapies, still under development, have long been funded by the US military.

Planarian flatworms are small, aquatic worms with exceptional regenerative capabilities. When cut, the worms can regenerate multiple bodies in a matter of weeks.

Watch this video that uses Lego bricks to explain how venture capital works.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The price of gas is a composite made up of several different factors, with the federal gas tax making up less than 20% of what drivers pay at the pump.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Sears sold DIY house kits starting at $600 in its famous catalog from 1908 through the 1940s, resulting in roughly 10,000 'Sears and Roebuck houses' being built.

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

English mathematician Ada Lovelace wrote the first computer algorithm a century before computers existed and hypothesized that computing devices would one day be able to compose music—foreseeing the generative AI systems of today.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Objects can be 3D printed with light by projecting 2D computerized tomography (CT) scans onto rotating cylinders of resin, which solidify upon exposure.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

Louisiana's 'Cancer Alley' is infamous for having some of the highest industrial pollution, toxic air emissions, and cancer risks in the US.