Famous brothers
Gracchi, Ancient Roman reformers
George Washington Adams, John Adams II, and Charles Francis Adams Sr., politicians
Ben Affleck and Casey Affleck, actors
The Alexander Brothers; musicians
Alec Baldwin, William Baldwin, Stephen Baldwin, Daniel Baldwin, also known as the Baldwin brothers; actors
John and Lionel Barrymore, actors
Chang and Eng Bunker, the original Siamese twins
George W. Bush, Jeb Bush, Neil Bush and Marvin Bush, sons of George H. W. Bush
David Carradine, Keith Carradine, and Robert Carradine, American actors
Bill Clinton, 42nd President of the United States,  and Roger Clinton, Jr., his younger half-brother
Joel and Ethan Coen; filmmakers
Stephen Curry and Seth Curry; current NBA point guards in the Western Conference
Dizzy and Daffy Dean, Major League Baseball pitchers
Mark DeBarge, Randy DeBarge, El DeBarge, James DeBarge, and Bobby DeBarge, the male members of the singing group DeBarge
Doud Eisenhower and John Eisenhower, sons of Dwight D. Eisenhower
Emilio Estevez and Charlie Sheen, actors
Isaac Everly and Phil Everly, The Everly Brothers, singers
Liam Gallagher and Noel Gallagher, members of Oasis (band)
Barry Gibb, Robin Gibb, and Maurice Gibb, members of the Brothers Gibb or "Bee Gees" singing group
John Gotti, Eugene "Gene" Gotti, Peter Gotti and Richard V. Gotti, and Vincent Gotti, New York "made men" with the Gambino crime family
Frederick Dent Grant, Ulysses S. Grant, and Jesse Root Grant
Jacob Grimm and Wilhelm Grimm, known as the Brothers Grimm, German academics and folk tale collectors
Matt Hardy and Jeff Hardy, professional wrestlers
Herbert Hoover Jr. and Allan Hoover
Pau and Marc Gasol, professional basketball players
OKelly Isley, Jr., Rudolph Isley, and Ronald Isley, Ernie Isley, Marvin Isley, and Vernon Isley, members of The Isley Brothers singer-songwriting group and band, which also included their brother-in-law, Chris Jasper
Jackie Jackson, Tito Jackson, Jermaine Jackson, Marlon Jackson, Michael Jackson and Randy Jackson, members of The Jackson 5 and later The Jacksons
Jesse and Frank James, Old West outlaws
John, Robert and Ted Kennedy, politicians
Edward M. Kennedy Jr. and Patrick J. Kennedy, politicians
Terry Labonte and Bobby Labonte, race car drivers
Robert Todd Lincoln, Edward Baker Lincoln, William Wallace Lincoln and Tad Lincoln, sons of Abraham Lincoln
Loud Brothers, piano designers and manufacturers
Eli and Peyton Manning, National Football League quarterbacks
Mario and Luigi, video game characters
John McCain, U.S.
Because repeated impacts are thought to increase the likelihood of CTE development, a growing area of practice is improved recognition and treatment for concussions and other head trauma; removal from sport participation during recovery from these traumatic injuries is essential. Proper return-to-play protocol after possible brain injuries is also important in decreasing the significance of future impacts.Efforts are being made to change the rules of contact sports to reduce the frequency and severity of blows to the head. Examples of these rule changes are the evolution of tackling technique rules in American football, such as the banning of helmet-first tackles, and the addition of rules to protect defenseless players. Likewise, another growing area of debate is better implementation of rules already in place to protect athletes.Because of the concern that boxing may cause CTE, there is a movement among medical professionals to ban the sport. Medical professionals have called for such a ban as early as the 1950s. Management
No cure exists for CTE, and because it cannot be tested for until an autopsy is performed, people cannot know if they have it. Treatment is supportive as with other forms of dementia. Those with CTE-related symptoms may receive medication and non-medication related treatments. Epidemiology
Rates of disease have been found to be about 30% among those with a history of multiple head injuries. Population rates, however, are unclear.Professional level athletes are the largest group with CTE, due to frequent concussions and sub-concussive impacts from play in contact sport.