An antiperspirant ad campaign in the early 1900s dubbed body odor "B.O."

Americans only became intolerant of body odor in the last century

Daily bathing only became a societal norm in the last century. Today, Americans routinely bathe and buy more deodorant than any other country, spending roughly $6 billion annually on odor-reducing products. The rise of industrialized soaps, deodorants, and antiperspirants—and extensive marketing around them—stimulated this demand.

Modern roll-on deodorant design was modeled on the ballpoint pen

Instead of a messy cream, which had been the norm in the 1940s, a new roll-on deodorant inspired by the easy flow of a ballpoint pen debuted in 1952.

Sweat doesn't smell, but bacteria multiply in moist environments—and cause an odor

Body odor is associated with sweat, but odor actually arises from the bacteria that multiply in moist environments on your skin. Hormones, medications, food, and body hair can all affect body odor.

Soap operas earned their name thanks to the sponsorships of soap brands

Many early 20th-century radio programs for women were sponsored by brands that introduced each new episode. Because these dramas were aimed at women, many of their sponsors were for household products, like soap. The association led some to refer to the shows as "soap operas," a title that stuck.

Explore the chemistry of undesired body odors

This graphic highlights some of the main compounds in different body odors, including halitosis (bad breath), flatulence, and foot odor.

'Sweat dating' is a dating approach where partners specifically select by body odor

With dedicated events in major cities around the world, "sweat dating" offers people the chance to judge if a potential partner's smell is a match. Participants show up for an event, do calisthenics, wipe themselves with a cotton pad, and then place the smelly pad in a numbered jar for potential partners to sniff.

A 1973 ad is credited with accelerating the Super Bowl advertising craze

The Super Bowl’s history as an advertising phenomenon began in earnest during the 1970s. In 1973, for instance, Joe Namath and Farrah Fawcett starred in Noxzema’s “Cream Your Face” ad, which Smithsonian Magazine says helped establish the game “as an event for advertisers.” Read this article to learn more about how the Super Bowl became advertising’s, well, Super Bowl.

Antiperspirants work better if they are applied at night

Dermatologists recommend applying antiperspirant at night for the best results. When applied to clean, dry skin at night, the active ingredient in most antiperspirants (aluminum salt), combined with the skin's natural moisture, forms plugs that block sweat glands, limiting sweat and related odors.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

When a Paris department store hesitated to sell Estée Lauder's perfume, she 'accidentally' broke a bottle, causing the smell to spread throughout the store and shoppers to start asking to buy the scent.

Monsanto got its start in the early 1900s producing saccharin

The company was originally called Monsanto Chemical Works and was founded in 1901 by John Francis Queeny who was then a wholesale drug buyer. He named the company Monsanto for his wife's maiden name. At first, the company began producing saccharin with borrowed equipment and secondhand machines, aiming to produce domestically what was then being imported from Germany. (Some users may encounter a paywall.)

Exactly who coined the term 'swimmer's ear' remains unknown

There is no record of anyone being the first person to call otitis externa by its most commonly known name, swimmer's ear. The earliest known use of the term was in a 1917 news article, according to the Oxford English Dictionary. The article in Connecticut's The Day stated that the illness was appearing among swimmers and bathers that summer.

Bill Bowerman brought running for fitness to America

Nike cofounder Bill Bowerman once cowrote a book with a doctor, W.E. Harris, called “Jogging.” Published in 1967 by New York, Grosset & Dunlap, it introduced America to the idea of running for health, instead of just sport—and kicked off the fitness frenzy of the 1970s that fueled Nike’s early success. (Some readers may experience a paywall).

Before it was a drink, coffee was used for handwashing

Five centuries before the caffeinated drink was consumed, coffee beans were used for their aromatic quality. One 10th-century text explains how it "obliterates greasy smells of food on hands and whatever of sweets and fats. Whether traveling or at home, neglect not to wash your hands with it."

'Mental hygiene' was the 1843 term for mental health

It was coined by American psychiatrist William Sweetzer to reference the same idea as personal hygiene. Mental hygiene, in Sweetzer's view, needed to be maintained in the same way people attend to their personal cleanliness, an idea that was supplanted by better understanding of the complexities of mental health disorder causes in the decades that followed.

After Title IX, the University of Chicago advertised a women's academic-athletic scholarship

There were athletic scholarships for women before Title IX, but the University of Chicago’s Gertrude Dudley Scholarship might’ve been the first to advertise itself as such, taking out an ad in a 1973 issue of Parade magazine. The school received over 1,000 applications.

The medical profession has a dark history of 'body snatching' for education

This term originally referred to secretly removing corpses from graves for sale—usually to medical schools where they were used for education. The practice dates back at least to the 1300s but still—much more rarely—persists today.

Why we should care about renaming the hormonal disorder PCOS to PMOS

The new name, polyendocrine metabolic ovarian syndrome, nods to the hormonal disruptions that cause this condition, which affects roughly one in eight women. People with PMOS may have symptoms including irregular periods, trouble conceiving, weight gain, acne, undesired hair growth, and more. The earlier name, polycystic ovary syndrome, was a misnomer because women with the condition don't have cysts in their ovaries. Rather, they have masses that are actually immature follicles. World health experts think the condition often goes undiagnosed.

One prankster started a movement to clothe animals in the mid-20th century

G. Clifford Prout founded the Society for Indecency to Naked Animals, saying that animal nudity was rude and immoral. The campaign continued for years until CBS employees realized Prout was actually a comedian named Buck Henry.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

​​Andy Warhol made a Coca-Cola perfume called 'You're In'

The 100 spray-painted bottles were filled with a cheap citrusy perfume, practically begging audiences to ask if they were indeed filled with urine. The Coca-Cola Company sent a cease-and-desist letter shortly after learning of the project. IN 2017, a Japanese fashion brand remade the works without mentioning Coca-Cola.

Some say baseball's drug problem goes back to the late 1800s

At age 32, pitcher James “Pud” Galvin was feeling tired and decided to take "the Brown-Séquard elixir," which contained a testicular fluid from dogs and guinea pigs, believed to invigorate tired bodies. It might've worked: Galvin pitched a two-hit shutout the next day.

The first identification of Alzheimer's was made in 1906

The first case of Alzheimer's disease dates to the early 20th century when Dr. Alois Alzheimer had 51-year-old Auguste Deter as a patient. Deter struggled with sudden memory issues and aggressive, irrational behavior. After Deter's death, Alzheimer examined her brain and found strange collections of molecular pileups.

Bumble's ill-received 2024 rebrand included ads encouraging users to stop being celibate

The ads were meant to promote a new option on the dating app that allowed men to message first in opposite-sex matches—a significant change to the app's signature "women make the first move" feature. Bumble later apologized for the ads on Instagram. Bumble shares fell 54% after the brand removed the signature feature and allowed men to message first.

Exclusionary ads can help win over customers, some marketers argue

Slogans like "if you don't like dark roast, this coffee isn't for you," also known as "dissuasive framing," can entice specific groups of customers, some marketers say. The shift comes from the perceived authenticity of a company admitting that a product is not perfect for everyone.

Women's wartime suit features silk dyed with CRISPR-modified bacteria

Anna Dumitriu's bioart piece was created to commemorate the 75th anniversary of the first use of penicillin in a human patient and intends to raise awareness about the rapid development of antibiotic-resistant pathogens by using bacteria that have essentially been transformed into their pre-antibiotic era state.

A history of treating frostbite

Amid Napoleon's invasion of bitterly cold Russia, soldiers succumbed to frostbite by the thousands. Nineteenth century doctors recommended walking and rubbing snow around the affected area. Fast forward to recent years, and the FDA has approved its first ever drug to treat frostbite. Listen to this podcast to learn the history of this wintry affliction.

In one of Ogilvy’s most well-known ads, he put an eyepatch on the ad’s star for ‘story appeal’

A 1951 campaign for men’s clothing brand Hathaway’s shirts featuring a distinguished man … wearing an eyepatch. Ogilvy has said he added it for “story appeal,” the idea that an ad should make viewers want to know the full story. The campaign ran for more than a decade. Ogilvy explains story appeal and more of his creative principles in this video.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

The story of Dollree Mapp, whose legal challenge over her 1957 conviction for possessing "obscene material" led to a major strengthening of the Fourth Amendment

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Georgia O'Keeffe's flower paintings are often assumed to be sexual, though the artist claimed she was simply interested in highlighting the beauty of flowers that most people neglect

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 first robot in literature may have been a 'mechanical man' in 1907's 'Ozma of Oz,' a book in L Frank Baum's 'Wizard of Oz' series.

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

Animal phobias are likely the most common type of phobias, followed by an extreme fear of heights.

Quincy Jones' 'Big Band Bossa Nova' helped introduce bossa nova—a jazz-influenced Brazilian genre—to the US

In its famous catalog, Sears sold $600 DIY house kits from 1908 through the 1940s, resulting in an estimated 100,000 'Sears and Roebuck homes.'

Mid-century modern graphic designers, known for their bright colors and bold lines in advertising, also found success with children's books.

Urushiol, the oily toxin in poison ivy, can remain allergenic on clothing for years.

After the Boston Tea Party, colonists switched to coffee, which became the main morning drink for revolutionaries.

Volcanic activity may have triggered the Black Death by spewing gases that led to crop failures in Europe, thus forcing the import of grain ships with plague-infested fleas.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

Learn how monoclonal antibodies, which mimic the body's antibodies, can fight diseases like Ebola.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

To reduce wrinkles in clothing, research recommends gentle wash cycles with more water and tumble drying with smaller loads and longer times.

Legendary architect Frank Lloyd Wright designed the SC Johnson headquarters in Wisconsin, aiming to make a cathedral-like workplace

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year