How much your blood really costs

The plasma-selling industry is expected to reach $50B by the end of the decade

About 55% of your blood volume is plasma, the liquid part of blood created from water, proteins, minerals, and salts absorbed through the digestive tract. This 49-minute podcast episode explores the business of plasma—part of a global industry expected to be worth $50B by 2029.

'Buffy coats': The 1% of blood that helps fight off disease

When blood is centrifuged, white blood cells and platelets form a layer called the buffy coat between the plasma and red blood cells. This layer makes up less than 1% of blood, but its heightened leukocyte concentration makes it useful for toxicology research.

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.

Why don't we synthesize blood?

We're trying. Scientists are currently working on creating viable synthetic blood, an alternative to the presently relied-upon donations that manage to fall short of demand. More than half of the world's nations struggle to meet their population's need for blood. This article details current and historical efforts to develop synthetic blood, a venture that started more than 400 years ago.

In the US, you must actively sign up to donate your organs

The US has an opt-in donation system for organ donation—meaning people must provide consent to proceed with any donation. Locations including Spain, the United Kingdom, and Argentina have an opt-out donation system, which means individuals are presumed to be donors unless they actively refuse consent.

Thousands of donated human kidneys are thrown away annually

Ten donated kidneys are thrown away daily even though thousands of people are awaiting a kidney transplant. Listen to a kidney doctor and a 2012 economics Nobel laureate discuss why this happens and how the organ transplantation system may be improved. Transplant centers are penalized for low transplant survival rates, they note, and that contributes to why hospitals may decide certain organs are just too risky to use.

An interactive explanation of blood transfusion

The antigens and Rh factors of blood cells (which determines your blood type) must be compatible with your immune system—which is why blood transfusions between patients must have matching types. In a mismatch, the immune system will attack and destroy donor blood cells, triggering a potentially fatal reaction.

Some banks derive half of their income from overdraft fees on checking accounts

The fees are incurred when a customer withdraws more money than is left in the account, typically around $35 per overdraft. One in 11 Americans pays more than $350 a year in such fees, generating tens of billions of dollars each year for banks..

Blood pressure readings correspond to the peaks and valleys of heart beats

Pushing 2,000 gallons of blood through the body every day exerts a force known as blood pressure. Blood pressure is highest during the heart's contractile phase, known as systole, which forces blood through the circulatory system, and lowest during the heart's resting phase between beats, known as diastole.

Living wage calculator

Some people who work low-wage jobs don't make enough money to pay for the cost of basic needs (like housing or child care) in their area of the country. Curious to see whether or not you make what's considered a "living wage" for your city or state? To find out, plug your locale into this Living Wage Calculator.

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

The median trust fund contains roughly $285K

That’s according to data from the US Federal Reserve. There isn’t a specific net worth that can help determine whether or not someone needs a trust—but contrary to popular belief, trust funds can be great estate planning tools, even for people who aren’t ultra-wealthy.

Thousands of quarters and huge water bills: the economics of laundromats

There are approximately 30,000 laundromats in the US, serving the roughly 50% of apartment dwellers who do not have a washer or dryer. Shops profit when they can get their machines—roughly 30 to 40 per location, on average—to wash eight to 10 loads a day. Connections with commercial vendors help.

Peloton makes most of its money via monthly subscriptions

Peloton has two core revenue streams: the exercise equipment it sells and the company's monthly subscription that gives users access to its class library. More than half of Peloton's revenue comes from the company's core product, the monthly subscription. Its "Peloton App+" membership tier is $28.99 per month.

The most expensive private schools in the US

Private schools can offer students specialized education and one-of-a-kind opportunities, but those often come with a price, with some schools charging close to six figures. Check out this list of the four most expensive American private schools, which charge more than most four-year colleges.

Annual memberships for concierge medicine can be $1,000 or as much as $50,000

Concierge medicine practices offer more opportunities for same-day visits and longer meeting times with doctors in exchange for annual membership fees on top of typical insurance payments, copays, and deductibles.

The typical US household could lower its household costs by 6.4% by using coupons

The study looked at coupons for food, household items, entertainment, and clothing, as well as other expected expenses. The grocery store category offered the largest amount of savings at around $316 annually.

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

See where Americans spend the most on gas

Drivers in Wyoming spend the most on gas per month at about $279, while New York drivers pay the least at $132. Longer driving distances have a significant impact on how much American drivers spend on gas.

There are monthly dividend ETFs that pay you to hold them

Traditional dividend stocks and funds pay out quarterly, or four times a year. A select group of stocks and funds pay out monthly, putting cash in investors’ hands 12 times a year. These monthly dividend funds are popular because their regular payouts can help keep budgets on track.

Buffett is known for being extremely generous with his fortune

So generous that in 2010 he pledged to donate 99% of his money. He said this money “can have a huge effect on the health and welfare of others.” This letter is Buffett’s philanthropic pledge, which details his commitment to giving and how luck and privilege helped him accumulate so much money.

Mental illness in the US costs roughly $282B annually nationwide

That figure, estimated as part of a 2024 Yale analysis that aimed to better understand the macroeconomic implications of mental illness, included the costs of mental health treatment, income loss, and overarching economic setbacks associated with mental illness.

Some people make too much money to file for Chapter 7 bankruptcy

Chapter 7 is the most popular type of filing for individuals needing relief. However, to be eligible, debtors must pass an income means test. At the most basic level, they must prove that their average monthly income over six months is below their state’s median. But there are exceptions.

The average number of IVF cycles before a viable pregnancy is 2.5

Health insurance often does not cover IVF treatment, and Medicaid coverage for fertility services differs by state. As a result, the cost of IVF is often unrealistic for low-income families.

Trials ongoing for a 99% accurate, AI-powered blood test

The UK's National Health Service has launched a trial for a blood test that can detect a dozen types of cancers with just ten drops of blood. An AI tool looks for genetic material known to be released by tumors, allowing for cancer detection before tumors are large enough to be imaged.

Becoming an Olympic swimmer costs tens of thousands of dollars

When you see Olympic athletes win gold, it's the culmination of years of hard work and discipline. But it isn't all sweat equity. Before ever stepping foot on the world stage, these athletes have to pay or find funding for private coaching and lessons, club memberships, and meet fees, with estimates that it costs $25K to $40K to make it to the Olympics.

Flood insurance policies from the National Flood Insurance Program cost just over $1,100 per year on average

Private residential policies range from $600 to $2,800 per year. Taking steps to lower flood risk in your home, such as installing flood vents or elevating home utilities, can make premiums cheaper.

Use this calculator to find the dollar value of your mental load, from meal planning to coordinating after-school care for your children.

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

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 syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Hedge funds, the private investment firms that trade a wide swath of financial assets, make money by imposing steep fees on investors and from the fund's investment performance.

Studies suggest when you sleep is as important as how much you get, and syncing with your circadian rhythms may lead to less fatigue and improved long-term health outcomes

The first steps to rebuilding your credit score include getting to know exactly what's on your credit report and figuring out how far you are from the '700 club,' or 'good score' range.

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

Explore what it's like inside a patient isolation unit, used in situations such as treating a patient or suspected patient with Ebola.

44% of Americans say they pray at least once a day—discover how your state's religiosity stacks up against the rest of the country.

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

Astronauts have repaired genetic damage in space using CRISPR—a molecular tool that can make precise changes to DNA and is used in single-celled organisms to attack invasive viruses.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

Art theft is the third-largest source of criminal revenues worldwide, thanks in part to the subjective nature of valuing a work of art.

Coral polyps reproduce via broadcast spawning, where entire reefs simultaneously release reproductive cells for about one hour, once a year.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

This site reaches millions of visitors who are tired of AI chatbots and seeking human connection. Pretend to be an AI chatbot and ask questions, provide answers, and draw for people in real time.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

How fusion—which releases energy when two lighter atoms combine to form a heavier atom—differs from fission

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

The tragic Pulitzer Prize-winning image 'The Vulture and the Little Girl' (1993) generated controversy, raised concerns about ethics in photography, and eventually led to the photographer's death.