CTE is a major threat to NFL players

Repeated head injuries, which may occur in collision sports at the youth, amateur, and professional levels, can lead to CTE and early dementia.

NHL Commissioner Gary Bettman rejects ties between CTE and playing hockey.

Retired professional soccer players are showing signs of potential neurological impacts in midlife, according to a study presented at the July 2026 Alzheimer's Association International Conference in London.

Following the NFL's concussion settlement, numerous victims were denied payouts.

Traumatic brain injury is a leading cause of brain death—and TBIs are trending up

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.

9/11 first responders still deal with significant mental and physical impairments.

67 US high school athletes died from exertional heatstroke between 1982 and 2022

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.

The biggest controversies of the NFL

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.

​​Some allege the NFL has shifted gameplay toward fantasy

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.

Korey Stringer, of the Minnesota Vikings, died of heat-related illness in 2001

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.

Tom Brady has played in and won the most Super Bowls of any NFL player

Appearing in 10 Super Bowls and winning seven—both NFL records—Tom Brady captured championships with two different teams, an unmatched résumé that has led many to regard the former sixth-round pick as the greatest player in league history.

Even athletes aren't immune to the sports-betting craze

While gambling scandals occasionally blew up before 2018, the widespread legalization of sports betting provided athletes with more opportunities to bet on the games they were playing.

NFL Draft decisions are shaped by brain science, data, and office culture

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.

Fantasy sports can have adverse health effects

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.

NFL explained

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.

100 years of NFL history in under four minutes

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.

Sports leagues have attempted to prevent athletes from betting

As pro and collegiate sports embrace betting (and the revenue that comes with it), each league works diligently to ensure the integrity of the games by hiring private firms to analyze irregular bets. These companies have flagged bets that led to the firing of Alabama’s baseball coach, the suspension of multiple athletes at Iowa and Iowa State, and, most recently, a lifetime ban on former Toronto Raptors forward Jontay Porter by the NBA in April 2024.

A 2024 cheating scandal cast doubt on the industry

In 2024, National Fantasy Football Championship, a fantasy league with big payouts, fired one of its employees for manipulating data. The episode cast doubt on the relatively unregulated industry, despite the league coming down hard on the nefarious worker.

The NFL is so successful because it is perfectly suited for television

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.

MLB pitchers were charged with benefiting from sports betting

In November 2025, two pitchers for the Cleveland Guardians were charged with coordinating with sports bettors to enrich themselves and others. In many instances, they shared the kinds of pitches they would throw at specific points in the game. Bettors then placed money on those actions.

Brain training game creates long-lasting changes in the brain that may help protect against dementia.

Mental health experts caution against youth sports betting

People in their early 20s represent the fastest-growing group of sports gamblers. That fact concerns mental health professionals, who warn that early exposure to gaming primes children’s brains to seek digital rewards.

The decline in value of the NFL running back

Running backs long held the role of superstar on NFL teams, carrying their team down by down to the endzone. Their salaries reflected that importance as well. But in the last 30 years, front offices and fans have taken more to the quarterback instead, who receives much higher salaries. This podcast episode breaks down the economics of the turn in the game's focus from rushing to passing.

NBA players are the best paid athletes in major US sports

The NFL is the most valuable pro league in the world, but its players aren’t making nearly as much as NBA players. This CNBC video dives into how league structure, salary cap, and guaranteed contracts define how much an athlete will make, and shows how NBA players are able to use those to get almost double the average annual salary of other pro leagues.

1440: The National Football League

Explore the best resources we found on the NFL

As fantasy football grew more popular, the NFL began adapting

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.

An estimated 49 million people played fantasy football in 2022

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.

Super Bowl LIX in 2025 made TV history with over 127 million viewers

Nielsen reported Super Bowl LIX drew an estimated 127.7 million viewers, the largest audience in Super Bowl history, with peak viewership near 138 million. This resource also includes viewership figures for every Super Bowl dating back to Super Bowl I.

The disease no one survives (yet)

Creutzfeldt-Jakob disease is currently incurable and can cause one's death within months of symptoms appearing. It involves misfolded proteins that, for some reason yet unknown to science, aren't cleared by the brain as typical and instead trigger similar proteins to misfold. These malformed major prion proteins—prion being a portmanteau of protein and infection—clump inside nerve cells, blocking signals crucial to processes ranging from speaking to organ function.

In 1985, New York Mets star Keith Hernandez said 40% of his MLB peers used cocaine, highlighting an open secret about drug use in the league.

A 2025 NBA scandal exposes athlete participation in sports betting

In October 2025, a current coach, a current player, and a former player and assistant coach were arrested as part of an FBI investigation into a large-scale gambling ring. The current player, Miami Heat guard Terry Rozier, is accused of using non-public information to bettors.

Pepsi dominates the list of the highest-rated Super Bowl commercials in history

The Super Bowl features the two best NFL teams, playing American football at the highest level. While the games may be forgotten by fans whose team didn’t make it, no one forgets the commercials.

A major upset in Super Bowl XLII prevented the Patriots from completing an undefeated season

In Super Bowl XLII, the heavily favored New England Patriots lost 17-14 to the Giants, ending a 16-0 season after David Tyree's improbable helmet catch set up the winning drive.

Rob Gronkowski dented the Lombardi Trophy during the Patriots' celebration

After their victory in Super Bowl LII, Patriots' tight end Rob Gronkowski dented the trophy by using it as a baseball bat before throwing out the first pitch at Fenway Park. Team owner Robert Kraft decided not to repair the trophy.

The NFL is the most valuable sports league in the world.

Several NFL teams incorporate yoga into their training

Although brawny football players might not seem like obvious yogis, many of the NFL’s athletes have taken to the practice for flexibility and mindfulness. Several teams, including the Los Angeles Chargers, Cleveland Browns, and Dallas Cowboys, make the practice a part of their conditioning routine.

Taylor Swift's relationship with Kansas City Chief's star Travis Kelce helped boost the NFL's popularity, especially among younger generations.

The general public cannot buy Super Bowl tickets at face value

The NFL controls every Super Bowl ticket, distributing none through a general public sale; after allotments to teams, players, sponsors, and the league, only about 11,600 tickets—roughly 16%—are available to fans at face value, mostly via team lotteries.

The Super Bowl is the National Football League’s championship game

Played annually in early February between the league’s two conference champions, the game was created as part of the 1966 merger between the American Football League and the National Football League. It has become the most-watched sporting event in the US each year.

Ken Caminiti exposed steroid use around the league

In 2002, newly retired Ken Caminiti was the first to admit to using steroids as a player, citing how common PEDs were in the league, something that had long been rumored, especially after the single-season home run record was broken in 1998 by Mark McGwire.

Americans spent nearly $150B in sports-related bets in 2024

These bets ranged from who would win the World Series to what color clothes famous celebrities would wear to the Super Bowl. Experts believe the industry will continue to grow.

The 300 best fantasy football players ever

Fantasy leagues (and their corresponding group chats) are no strangers to arguments, and this list will likely inspire a few spirited ones. Ten ESPN writers were asked to pick 30 of the undisputed greats of fantasy football, making for a fascinating look back at the all-stars of the digital gridiron

How Carolina's Luke Huechly dominated the NFL with his intellect

As a Carolina Panther for eight seasons, Huechly used his exceptional mind to study opponents and anticipate plays. As a linebacker, he consistently led the NFL in tackles and was named All-Pro almost every season.

Some dementia cases may be linked to treatable microorganism infections in the brain.

The 9/11 plane crashes, which resulted in the collapse of the Twin Towers, created toxic dust that included materials including asbestos, silica, metals, concrete, and glass.

Legal gambling on Super Bowl 60 is expected to reach $1.76B

Legal Super Bowl wagering has grown sharply over the past decade as US states legalized sports betting. In 2018, sports betting was only legal in Nevada and accounted for $158.5M.

Genetic blood test offers an estimated clock on when Alzheimer's symptoms may appear

The 2026 research finding from researchers at Washington University School of Medicine in St. Louis—if validated in broader populations—suggests that an already available blood test could estimate when Alzheimer's symptoms may begin within a margin of several years. The test detects a protein called p-tau217 found in blood plasma and the researchers incorporated the findings from that blood test into a statistical model to come up with the symptom timeline predictions.

Hockey enforcers are players responsible for guarding against aggression from the opposing team

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.

Read a study about racial differences in Lyme disease diagnosis

The research published in September 2025 examined differences in Lyme disease diagnosis among Medicaid and Medicare beneficiaries using data from 2016 to 2021. It notes that though US Lyme disease surveillance data indicates more than 90% of diagnosed Lyme cases are among white people, people of color—particularly those who identify as Black or African American—have higher rates of more severe disease of Lyme, with symptoms including arthritis and neurologic impacts.

Some experts equate prediction markets to the new crack cocaine of gambling addiction

An addiction psychiatrist at UCLA says betting apps are far more potent than traditional gambling, citing a 19-year-old patient who lost $180,000 and hadn't left campus in a year, cycling through sports bets, crypto, meme stocks, and prediction markets on his phone. This interview explores the extreme edge of the nascent industry.