Brown Tangles News Today

Is actually headed for the boston university school of medicine. where evidence of brown tangles, damage in the brain called chronic traumatic ensef lop theyve, or cte, have thus far been found in 30 ex-athletes. many of whom like duerson, played professional football. in the next several months, duersons brain activity will be studied. perhaps this will provide answers for fellow athletes still living. >> we hope it really makes a difference and once they find out what the cause is, that the nf...

Himself in the chest. the details are hazy, but friends and family say the manner in which duerson shot himself may have been to protect the one thing he could leave behind, the one thing that might help fellow athletes. echoing his final text message, duerson left behind a haunting missive. "please see that my brain is given to the nfls brain bank." >> hes always been a strong person on and off the field, and even at the end, you know, hes trying to help somebody. >> reporter: tissue from duers...

And the microscopic vision. in the middle is a football player 45 years old. look at the difference there. the brown tangles that is the same sort of thing you see in people who has alzheimers disease. on the far right is a 70-year-old person who is a boxer who did have alzheimers disease. this is the concern and what they are looking for in these brains. >> specifically duersons brain, i guess what specifically are they going to -- like you said its a random process but when we hear the results...