NFL numbers suggest that in 2025 there were 168 concussions during the regular season, which statistically means that more than five players on every team had a diagnosed concussion.

The early days of football were violent and there was little protection for players, especially their heads. When deaths became commonplace, John Riddell set out to invent a better way to protect football players. Eventually, the technology from Riddell’s helmets ended up on WWII battlefields.

Until the 1970s, hockey goalies didn't wear masks to protect their faces with any regularity. Instead, they took pucks off their cheeks, foreheads, and mouths, resulting in serious scars. Any player who entered the league after June 1, 1979, was required to wear a helmet, but several players who'd started before then chose to continue playing without one.

A week before Super Bowl LVII, Boston University released findings from a study diagnosing 91.7% of former NFL players in their 376-person study with chronic traumatic encephalopathy. It was a stark comparison to the less than 1% of CTE diagnosis in non-football players.

Many of those deaths were from football specifically, where student athletes play in hot conditions while wearing heavy protective gear. Few states mandate heat guidelines for school athletes, and this article says that's of increasing concern with more high heat index days.

Your great-grandparent's World War I helmet stuffed in the back of a closet may be just as effective at preventing brain injury from some blasts as a modern-day military helmet. This article further explains a study that pitted WWI and modern helmets against each other.

The number, estimated by the Fantasy Sports and Gaming Association, has grown exponentially since the start of the century. While fantasy sports in general are popular, football is the most popular, with an estimated 79% of fantasy participants playing fantasy football.

Founded in 1920 in Canton, Ohio, professional football has grown into the premiere sport in the US. Generating more than $20B annually, the NFL gained significant popularity after merging with the American Football League in 1970, a move which among other things established the Super Bowl.

Some of the biggest controversies in NFL history didn’t just spark debate—they changed the game. From Spygate and Deflategate to concussion research and the league's ambivalent stance on it, these moments led to new rules, safety measures, and major policy shifts. Explore how each scandal shaped the league and its future.

Recent rule changes in the league have increased passing and point-scoring, which critics argue is motivated by a desire to appeal to fantasy-loving viewers who might be frustrated by slower, lower-scoring games.

The NFL draft is a three-day spectacle with wall-to-wall media coverage and months of speculation about who will go to number one. But it wasn't always like that. The early days of the draft were done on a chalkboard and created a need for professional scouting departments.

While American football may be entertaining, for fans who never played the game it can be confusing. Why do teams choose to run, pass, line up in certain defenses, run people in motion, call audibles at the line—or do any of the many other things that happen on the field?

In response, the NFL overhauled its heat approach and no other player has since died from heat-related illness. Even at the high school level, research suggests safety measures should include: mandating water breaks, keeping a cool tub available, and having athletes acclimate to high-temperature playing conditions for a week or longer before donning the full set of protective equipment.

Experts warn that fantasy sports, including fantasy football, can encourage obsessive use because they offer hits of dopamine. Daily fantasy games, which function more like gambling, are especially problematic.

The NFL is the premier professional American football league, founded in 1920 in Canton, Ohio. It consists of 32 teams playing an 18-week regular season from September to January, culminating in the Super Bowl championship in February. The NFL has grown into the world's most valuable sports league, generating nearly $20B in revenue in 2023, and with teams valued at $163B combined. Learn its history here.

From the 1980s through to the early 2000s, enforcers were a regular part of NHL lineups. At 6 feet 7 inches, Derek Boogaard’s body was made for the part, but he was found to have suffered from CTE after his tragic death at 28. Stories about Boogaard helped dramatically reduce enforcers in hockey and opened discussions for player safety.

The first three decades of Formula 1 saw 41 drivers die in competition; since 1980, only 11 have perished. The reduction is due, in large part, to better safety measures. This article highlights every safety improvement made by year since F1 started, and describes the accidents or deaths that led to the rule changes.

By the late 1990s, CBS, ESPN, and Yahoo had all launched their fantasy platforms, allowing the game to grow even more popular. By 2009, the NFL took note and began offering coverage that explicitly focused on fantasy metrics, including “RedZone,” a popular Sunday show that allows viewers to tune into the most crucial moments from around the league—or across their fantasy rosters.

This list ranks the 100 most significant sports moments of the first 25 years of the 21st century. The editors compiled the collection based on a list of factors, including the "collective joy" factor, whether it made you curse in disbelief, and how much it transcended the sport and entered the broader culture. The top moment: The improbable "helmet catch" during the Super Bowl in 2008.

In 1902, Charles Follis was the first Black player to play in a professional football game, and Black players were allowed in years after other leagues banned them. A "gentleman’s agreement” led to the league banning Black players in 1933, until four Black men reintegrated pro football in 1946.

Carnegie Mellon researchers say Draft-room choices are influenced by the "jackpot effect"—where higher stakes can impair performance—as well as by groupthink, the limits of data, and whether scouts feel safe speaking up.

Explore the best resources we found on the NFL

When Walter Camp was introduced to the game of football in the late 1800s, the rules weren’t set, the field wasn’t uniform, and the game was brutal. Camp joined early rules committees and was instrumental in shaping the modern game. Read this deep dive into Camp’s early life and influences, and find out how he established the line of scrimmage and the series of downs.

A combination of training, technique, and new rules regarding equipment has led to a sharp improvement in kicking since 2020. Certain players are now allowed to keep footballs with them throughout the practice week and play with a ball of their choosing during games.

Known as the “Father of American Football,” Walter Camp introduced key innovations in the 1880s—such as the line of scrimmage, the system of downs, and the snap—that distinguished football from rugby and defined its modern structure.

The predictable weekly cadence of football games ritualizes the experience of watching together, and their relative scarcity makes every game meaningful. With the stop-and-go play of the sport, there are predictable, repeating stoppages to allow broadcasters to sell lots of advertising inventory. The league sits in the sweet spot compared to MLB (many games) and NBA and soccer (continuous play with fewer ads). This Acquired episode distills fascinating insights into the NFL's business and history.

Curious about how fantasy football grew into a global empire? This video breaks down how a losing Oakland Raiders team led to the first form of fantasy football, long before the internet and smartphones made it a worldwide phenomenon.

In the mid-1950s, Wilfred “Bill” Winkenbach, a part-owner of the Oakland Raiders, concocted two fantasy sports games: one for Major League Baseball and one for the Professional Golfers’ Association. In 1962, he invented fantasy football alongside two writers from the Oakland Tribune.

It all started with a match between Princeton and Yale in 1876, attended by fewer than 1,000 fans. That competition spawned an annual tradition attracting millions of viewers across college and professional teams.

When the Rams took the field for their first preseason game of the 1948 season, they exited the tunnel with hand-painted ram horns on their helmets. It was the first logo painted on an NFL helmet and fans gave a 5-minute standing ovation.

Traumatic brain injury-related deaths have generally increased between 2000 and 2023, growing from roughly 49,000 to more than 68,000 in 2023. Firearm-related suicide is the most common cause of TBI-related deaths in the US, according to the Centers for Disease Control and Prevention. People also experience TBIs from falls, motor vehicle crashes, or assaults.

At least 158 participants under the age of 20 have been killed on dirt bikes since 2000, roughly six on average per year (seven times the death rate of tackle football). Observers note risks come from mixing ages and lacking warning systems during crashes.

The rules of the sport set bounds on possible final outcomes, so this adept statistician mined some fascinating takeaways. Some scores are impossible (like 5 to 1) and some are more common (like 20-17, occurring over 300 times since 1944). Watch for a deluge of numbers.

Before baseball, American football, basketball, or hockey ever organized in the US, there was one sport which could be found up and down the East Coast: cricket. The second-most popular sport in the world, cricket is mostly ignored by Americans, despite its prevalence in early American history. Learn more about the forgotten role cricket played in the US with this article.

"National Pastime" used the statistics of real Major League Baseball players to determine a winner, creating the template for the modern fantasy sports model.

Unsurprisingly, picklers over 50 account for 90% of the injuries, with the most common being sprains, strains, and fractures. Experts say a substantial pregame warm-up can prevent most injuries.

There have been eight NFL commissioners in the league’s 100-plus year history, but none of them changed the league quite like Pete Rozelle. This 1984 New York Times Magazine profile looks back at the substantial changes Rozelle brought to the league since he took the job in 1960, as well as the challenges he faced while in office.

The Greater Oakland Professional Pigskin Prognosticators League was a private league, but by the end of the ‘60s, a bar in Oakland opened the first public fantasy football league. Over the next few decades, the game grew more popular, as evidenced by this how-to article from a 1980 issue of “Inside Sports.”

F1 racing cars go over 200 mph, making fatal crashes inevitable throughout its history. Car models have changed many times to make them safer, but the sport has never adopted a closed cockpit, a perhaps obvious solution to protecting drivers from fast-flying debris. Instead, F1 cars have a halo-shaped top, which helps cool drivers, allow for quick escape, and more. Watch a breakdown here.

The rise of televised games in the mid-20th century expanded college football’s reach far beyond campus stadiums—turning regional rivalries into national events, boosting revenue, and cementing the sport as a Saturday tradition across the country.