NFL concussions more common on colder game days
The study also found ankle injuries were more common at colder temperatures
Concussion
NFL demands retraction of New York Times story on concussions
League makes veiled threat of legal action over story that called concussion research flawed; paper stands by report
NFL says concussions were way up in 2015
League says it will study what might have caused head injuries to rise by 58 percent this season
New technology offers on-field head injury reporting
Experts hope system will help get student athletes the speedy treatment they need after a head injury or concussion
Could helmet-free football practice prevent concussions?
Experts say the approach may encourage football players to avoid using their heads as weapons
Here's to your health: Medical news that mattered in 2015
New mammogram advice, vaccine controversies, and a little pink pill were among the top health stories of the year
Cheerleading injuries less common, more severe
Supporters say that when cheerleading is not considered an official sport, there can be dangerous consequences
Doctor: "Clear signs of a concussion" after Rams QB hit
NFL to hold mandatory conference call with athletic trainers after quarterback Case Keenum remained in game despite suffering concussion
NFL investigating why QB kept playing after concussion
St. Louis Rams quarterback Case Keenum remained in the game after a hard hit slammed his head into the ground
Case Keenum concussion challenges NFL protocol
Rams quarterback was obviously woozy after his head slammed the ground, but he never missed a play, leading to many questions for NFL
Will a ban on headers keep young soccer players safe?
Limits are set for older children, too, after U.S. Soccer Federation faced a safety lawsuit from some parents
Blood test may help diagnose concussions in kids
Researchers say the simple test could one day help coaches and parents make decisions about children's care on the field
New guidelines for youth football follow injuries, deaths
The American Academy of Pediatrics' recommendations come as a Tennessee high school football player is in critical condition and a high school in Chicago mourns the death of a student athlete
Chris Nowinski: The NFL needs to "evolve" to protect players
The co-founder of the Sports Legacy Institute, which focuses on traumatic brain injury research, talks to CBS News about how football rules need to be changed to address concussion and chronic traumatic encephalopathy issues
Concussions linked to Alzheimer's disease plaques
Daily health headlines: Concussions may trigger another neurological disease, plus more top stories
James Brown: Fear Favre describes felt by other former players
Brett Favre revealed this week that he suffers from memory loss, an admission that comes after the NFL's recent $775 million concussion settlement
Favre: Memory loss "a little bit scary to me"
The only quarterback to have won three consecutive NFL MVP awards said he suffers from memory loss and believes it may be the result of concussions
Brain disease found in 87 deceased NFL players
Researchers say data provides more evidence of the link between head trauma in football and long-term brain deterioration
"Concussion" director says no compromises made for the NFL
A day after its trailer debuted online, the Will Smith football head-trauma film is already sparking controversy
Memory loss takes toll on former NFL players
Study looks at the long-term damage from concussions in professional football
Kids' concussions cause problems at school
Students often have a hard time with academics after a head injury, researchers say
Judge OKs $1 billion deal over NFL concussions lawsuit
Awards for players who suffer from Alzheimer's disease or moderate dementia average out to $190,000 per person
Brain scans may spot concussion-related condition
New technique may help diagnose football players and others suffering from lingering damage
Chris Borland on retirement: "The best decision for me"
The star NFL rookie linebacker answers critics on "Face the Nation" who accused him of making a cash grab by playing just one year
Why NFL rookie Chris Borland decided to retire after one season
The 24-year-old linebacker's announcement is bringing the risks of long-term head trauma back into the spotlight
Live
Trump says Strait of Hormuz deal could happen as soon as today
President Trump told reporters Tuesday evening that an announcement on the Strait of Hormuz could happen today or tomorrow, following talks between Iran and Oman.
Investigation
Company's safety record raises questions after massive L.A. warehouse fire
The massive food warehouse fire in Los Angeles in June followed a long run of fires at properties tied to one of the world's largest cold storage companies, a CBS News investigation has found.
At least 12 states report cyberattacks on water systems possibly linked to Iran
Cyberattacks on U.S. water systems that officials suspect may be linked to Iran-backed hackers have been reported in at least a dozen states, sources familiar with the matter told CBS News.
Qdoba removes jalapeños as salmonella outbreak spreads to 27 states
At least 345 people — the majority in Colorado and Minnesota — have been sickened by a salmonella outbreak, according to the U.S. Centers for Disease Control and Prevention.
FAA probing Marine One safety incident around National Airport
When the helicopter that transports President Trump crosses the Potomac, Reagan Washington National Airport is required to impose a ground stop on air traffic.
Senate confirms Dr. Erica Schwartz as CDC director
The Senate confirmed Dr. Erica Schwartz in a 51 to 44 vote.
Progressive Abdul El-Sayed projected to win Michigan Democratic Senate primary
Former state health official Abdul El-Sayed faced Rep. Haley Stevens in the Democratic Senate primary in Michigan in a closely watched contest that represented the latest test of the party's divisions.
Cyclospora outbreak tied to lettuce now linked to 15 states, CDC says
Cyclospora cases have been reported in at least 47 states total this year, and investigators have continued to probe how many could be linked to a common contaminated source.
White House declassifies info on secret FBI probe into Trump's firing of Comey
The White House has declassified information claiming the FBI probed whether President Trump acted as a Russian asset when he fired James Comey, a theory an administration official said wasn't backed up by evidence.
U.S.
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More rescued beluga whales arrive in Texas as relocation effort continues
SeaWorld San Antonio welcomed seven more beluga whales on Tuesday, the latest development in the international effort to relocate dozens of the mammals from shuttered Canadian theme park Marineland.
Cyclospora outbreak tied to lettuce now linked to 15 states, CDC says
Cyclospora cases have been reported in at least 47 states total this year, and investigators have continued to probe how many could be linked to a common contaminated source.
Qdoba removes jalapeños as salmonella outbreak spreads to 27 states
At least 345 people — the majority in Colorado and Minnesota — have been sickened by a salmonella outbreak, according to the U.S. Centers for Disease Control and Prevention.
Investigation
Company's safety record raises questions after massive L.A. warehouse fire
The massive food warehouse fire in Los Angeles in June followed a long run of fires at properties tied to one of the world's largest cold storage companies, a CBS News investigation has found.
AI models are behaving unexpectedly. Experts warn of a "bumpy road" ahead.
AI models are engaging in unauthorized actions — in the most recent case, creating fake identities and attempting to persuade real people to approve malicious code.
MoneyWatch
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Some Gen Zers swap smartphones for "dumb" phones in a bid to unplug
"It really opens up your mind," said one 23-year-old who ditched smartphones to wean herself off social media.
Why SpaceX stock is falling despite strong revenue growth
Investors are focused on whether SpaceX will be able to deliver on its ambitious artificial intelligence agenda.
Disney partners with TikTok to offer creator content on its app
Disney and TikTok are teaming up to let users create short-form videos that draw on the entertainment giant's large stable of movies and TV shows.
SpaceX shows strong growth in its first earnings report since IPO
Elon Musk's rocket, satellite and AI provider reported quarterly revenue of $7.8 billion, topping Wall Street forecasts.
Chipotle removes jalapeños linked to Minnesota salmonella outbreak
The restaurant chain said it pulled the peppers and replaced them with product from another grower amid a food-poisoning probe.
Politics
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House candidate wins primary despite ending campaign, beating Trump endorsee
Thomas Smith won Michigan's 8th District GOP primary on Tuesday — even though he had suspended his campaign in mid-July. Even more surprisingly: He defeated a Trump-endorsed candidate.
FAA probing Marine One safety incident around National Airport
When the helicopter that transports President Trump crosses the Potomac, Reagan Washington National Airport is required to impose a ground stop on air traffic.
Senate confirms Dr. Erica Schwartz as CDC director
The Senate confirmed Dr. Erica Schwartz in a 51 to 44 vote.
$25 million reward offered for U.S.-born leader of powerful cartel
Juan Carlos González is the stepson of "El Mencho," who was killed by the Mexican military.
First on CBS
Senator pushes DoD to release probe of Iranian attack that killed 6 U.S. troops
A CBS News investigation found troops had flagged military leaders about the lack of defenses and insufficient medical supplies ahead of the attack in Kuwait at the beginning of the war with Iran.
HealthWatch
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HealthWatch
Toddler twins reunited after cancer treatment
A video showing 3-year-old twins Millie and Maverick reuniting after one of them had to undergo cancer treatment hours away from their home has gone viral. Matt Gutman reports.
Cyclospora outbreak tied to lettuce now linked to 15 states, CDC says
Cyclospora cases have been reported in at least 47 states total this year, and investigators have continued to probe how many could be linked to a common contaminated source.
Qdoba removes jalapeños as salmonella outbreak spreads to 27 states
At least 345 people — the majority in Colorado and Minnesota — have been sickened by a salmonella outbreak, according to the U.S. Centers for Disease Control and Prevention.
As FDA approves marketing for nicotine pouches, some doctors sound alarms
One health advocate called nicotine pouches a "profound risk" for young people.
Senate confirms Dr. Erica Schwartz as CDC director
The Senate confirmed Dr. Erica Schwartz in a 51 to 44 vote.
World
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More rescued beluga whales arrive in Texas as relocation effort continues
SeaWorld San Antonio welcomed seven more beluga whales on Tuesday, the latest development in the international effort to relocate dozens of the mammals from shuttered Canadian theme park Marineland.
$25 million reward offered for U.S.-born leader of powerful cartel
Juan Carlos González is the stepson of "El Mencho," who was killed by the Mexican military.
Baby "cocaine hippo" linked to infamous drug lord is rescued in Colombia
Colombia has around 200 so-called "cocaine hippos" living in the wild, all of which descended from a colony brought to South America by slain cocaine kingpin Pablo Escobar.
Record-low Danube River levels threaten shutdown of Hungary's nuclear plant
Three of four units of Hungary's Paks nuclear power plant were not in operation and the fourth was operating at about 50%, as of Wednesday morning.
Russian drone factory director seriously injured in car explosion
Vladimir Tkachuk has been pictured showcasing his drones to President Vladimir Putin.
Entertainment
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Entertainment
Aaron Pierre talks new series, "Lanterns"
Actor Aaron Pierre is starring as John Stewart in the new series "Lanterns." He tells "CBS Mornings" why this character is special to him, what it's like to join the DC Universe and how he managed undergoing surgery during the audition process.
Stranger rescues band from car troubles
A kind stranger named Ernie helped rock band The Autumn Kings make it to their tour stop after their car broke down in Wisconsin. Matt Gutman reports.
Ariana Grande on her plans to take break
One day after announcing she'll step back from the spotlight after her tour ends, Ariana Grande spoke directly to fans at Monday night's show in Chicago. The singer said the decision was her own and "was made from a thoughtful and empowered place."
Jordan Roth talks "The Shards"
Tony Award-winning producer Jordan Roth talks about starring in the "The Shards" and describes what it was like to go from behind the scenes on Broadway to making his major on-screen acting debut.
Hollywood on hot streak at the box office
"Spider-Man: Brand New Day" leapt straight to the top of the box office this weekend. Its $360 million opening weekend debut is the biggest in U.S. history. Marlow Stern, chief correspondent at Variety, joins CBS News to discuss all the latest movie news.
Technology
More Technology
AI models are behaving unexpectedly. Experts warn of a "bumpy road" ahead.
AI models are engaging in unauthorized actions — in the most recent case, creating fake identities and attempting to persuade real people to approve malicious code.
At least 12 states report cyberattacks on water systems possibly linked to Iran
Cyberattacks on U.S. water systems that officials suspect may be linked to Iran-backed hackers have been reported in at least a dozen states, sources familiar with the matter told CBS News.
How AI powered robots are helping small farms
From labor shortages to environmental impacts, farmers are looking to AI to help revolutionize the agriculture industry. One California startup, Farm-ng, is tapping into the power of AI and robotics to perform a wide range of tasks, including seeding, weeding and harvesting.
Anthropic AI created fake profiles in hack
Two of the most powerful artificial intelligence agents created fake human profiles to try to trick people in attempted cyberattacks. Mashable tech editor Tim Werth joins CBS News to discuss.
Some Gen Zers swap smartphones for "dumb" phones in a bid to unplug
"It really opens up your mind," said one 23-year-old who ditched smartphones to wean herself off social media.
Science
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Science
Bezos, DiCaprio set up massive wildlife fund
Hollywood actor Leonardo DiCaprio and Amazon founder Jeff Bezos have announced a $200 million fund set to protect species on the brink of extinction. Carter Evans has the story.
Dramatic photos show lava spewing from Fuego volcano in Guatemala
Guatemalan officials on Monday began evacuating two villages near the Fuego volcano due to the ongoing eruption.
Rare footage of humpback whale birth captured on drone video
The footage is believed to be only the fourth complete humpback whale birth ever recorded on film anywhere in the world and the first-ever captured by drone.
Rare video shows humpback whale birth
A photographer operating a drone off the coast of Australia captured a humpback whale giving birth. It's believed to be the first time such a birth has been recorded by a drone.
How plants feel
Science shows us that, even though plants don't have brains, they seem to have a nervous system that responds to touch in remarkable ways. Robert Krulwich and puppeteer Barnaby Dixon explore the science of thigmomorphogenesis (the phenomenon of plants reacting to outside stimulae), a discussion that plants the seeds for a song.
Crime
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Crime
Questions about company in L.A. warehouse fire
Matt Gutman investigates Lineage Logistics, the company involved in the Los Angeles warehouse fire that left tens of millions of pounds of meat to rot, forcing a whole community to face foul odors and other health hazards.
Details on man arrested near Trump golf club
A man arrested outside President Trump's golf club in Rancho Palos Verdes, California, was already under investigation for robbery. Nikole Killion has the details.
New Mexico AG on suing DOJ over Epstein files
New Mexico is suing the Trump administration for access to files related to Jeffrey Epstein as it investigates the convicted sex offender's Zorro Ranch property. New Mexico Attorney General Raúl Torrez joins "The Takeout" to discuss.
Water system cyberattacks spread to more states
Several states are experiencing cyberattacks on their water systems after Minnesota reported at attack last week. CBS News homeland security correspondent Nicole Sganga has the latest.
Latest details from Lindsay Clancy trial
The murder trial of Lindsay Clancy wrapped its seventh day on Wednesday. Clancy has admitted to killing her three children, but her defense says she was experiencing an extreme mental health crisis at the time of their deaths. CBS News' Shanelle Kaul has more.
Space
More Space
SpaceX rocket booster slams into moon, creating crater that could be 16 feet deep
The impact wasn't visible to the naked eye, but photos are expected to come from a lunar satellite at a later time.
Russian Soyuz brings three home after 8 months at space station
The Soyuz MS-28 landing in Kazakhstan brought a 241-day stay in space to a successful conclusion.
SpaceX's Super Heavy-Starship blasts off on 13th test flight
An upgraded version of the world's most powerful rocket is key to landing NASA astronauts on the moon in the agency's Artemis program.
Meteorite that hit home contains "alien world chemistry," experts say
When scientists examined the preserved fragments of a meteorite that crashed in 2024, they found brine-like fluids and key molecules.
Russian Soyuz rocket launches fresh crew to space station
The new crew will replace three other Soyuz fliers wrapping up a 240-day stay aboard the International Space Station.
Latest Galleries
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Notable Deaths in 2026
A look back at the esteemed personalities who've left us this year, who'd touched us with their innovation, creativity and humanity.
Summer music highlights of 2026
Summer is the time to enjoy live music, indoors and out. Scroll through our gallery of some of 2026's leading musical acts, featuring images by CBS News photojournalist Jake Barlow and photographers Ed Spinelli and Kirstine Walton.
Investigating the death of designer Sylvie Cachay
Sylvie Cachay was found dead in an overflowing bathtub at the exclusive Soho House in New York City on Dec. 9, 2010. A water leak at the hotel gave away a timeline that may have revealed her killer.
Photos show celebrations at Obama Presidential Center
The Obama Presidential Center, museum and library opens in Chicago with a star-studded grand opening ceremony and public watch party on Midway Plaisance.
Timeline: The disappearance of George Smith
Family seeks answers in death of newlywed who disappeared in 2005 while on Mediterranean honeymoon cruise.
Latest CBS News Videos
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Latest CBS News Videos
Unnerving report about AI deception
The United Kingdom's AI Security Institute reports that models from Anthropic and OpenAI "engaged in sustained, potentially harmful activity directed at real people and organizations" when they created fake identities in a deception attempt during a recent cybersecurity test. CBS News' Jo Ling Kent reports.
More beluga whales arrive in Texas
SeaWorld San Antonio welcomed seven more beluga whales on Tuesday, the latest development in the international effort to relocate dozens of the mammals from shuttered Canadian theme park Marineland. Jared Ochacher reports.
Toddler twins reunited after cancer treatment
A video showing 3-year-old twins Millie and Maverick reuniting after one of them had to undergo cancer treatment hours away from their home has gone viral. Matt Gutman reports.
Questions about company in L.A. warehouse fire
Matt Gutman investigates Lineage Logistics, the company involved in the Los Angeles warehouse fire that left tens of millions of pounds of meat to rot, forcing a whole community to face foul odors and other health hazards.
Sanders lauds El-Sayed's win as unprecedented
Independent Sen. Bernie Sanders of Vermont on Wednesday lauded Abdul El-Sayed for his victory in the Michigan Democratic Senate primary, calling it "literally unprecedented in modern American history." Associated Press politics reporter Matt Brown and NOTUS Senate reporter Igor Bobic join "The Takeout" to discuss.