Minutes after Tua Tagovailoa suffered his latest concussion Thursday, former NFL players took to social media — and later to national broadcasts — to call for the Miami Dolphins quarterback to step away from football. Thursday’s concussion comes less than two years after Tagovailoa suffered numerous head injuries in the 2022 season, which forced him to miss extensive time. After that season, he told reporters he considered retiring.

A single mild concussion while playing amateur sports does not lead to long-term cognitive decline a recent study has found. This conclusion may seem at odds with much research on head injury and concussion in sport. However, a closer look at the study shows its findings are not so different after all: experiencing repeated concussions is not a good thing.

University Hospitals and Case Western Reserve University research team reports a novel treatment after traumatic brain injury that prevents progression to chronic neurodegeneration.

A recent study found that despite a rise in mental health disorders among first responders, only 13% of front-line health care workers say they've received behavioral health services.

Fans and families will pack the bleachers in high school stadiums across the country as football season ramps up. But after at least seven deaths tied to the sport in August, including two teenagers who sustained brain injuries on the same day, questions are again being raised about the safety of the game. William Brangham discussed more with Chris Nowinski.

One of Australia's most decorated and longest serving military commanders has revealed he will donate his brain to research, as the Australian Defence Force grapples with the impact of blast exposure on soldiers' cognitive health. In the past two weeks, more than 200 current and former service personnel have pledged their brains to the Australian Veterans Brain Bank (AVBB), after the ABC reported growing evidence of a link between mild traumatic brain injury (mTBI) associated with blast exposure and poor mental health and suicide.

Researchers at Emory’s Brain Health Center say they’ve located the part of the brain damaged by post-traumatic stress disorder (PTSD) that regulates and suppresses fear and can get stuck on “high alert” in traumatized people.

Researchers in Michigan State University's Department of Kinesiology found significant geographic variations in concussion diagnoses in United States emergency departments—with the highest rates in the South and lower rates in the Midwest and Northeast.

The death of two young football players in late August sparked yet another conversation about the safety of youth football. A 13-year-old middle school player died from brain trauma during a practice, but his father, Ryan Craddock, recently spoke out and said this tragedy doesn't mean kids should give up the sport. Instead, the father is urging schools to add head protectors called guardian caps to their football helmets. 

Study reveals that impaired brain clearance, indicated by larger perivascular space volume, may be the missing link between repetitive head impacts and cognitive decline in former American football players.