# Study estimates 75% of NFL players who died over 15-year span had CTE

> **Open Intelligence Dossier** · First detected: 2026-10-28 16:20 UTC · Category: Sports

## Executive Summary
A landmark study reveals an estimated 75% of former NFL players who died between 2008 and 2023 suffered from Chronic Traumatic Encephalopathy (CTE).

## Intelligence Brief
A new study conducted by researchers in Boston has provided a revised and more complete estimate regarding the prevalence of Chronic Traumatic Encephalopathy (CTE) among former professional football players. According to reporting from NBC News and CNN, the research indicates that approximately three in four NFL players who passed away over a specific 15-year window suffered from the brain disease. Specifically, the data covers the span of deaths occurring from 2008 to 2023, suggesting that 75% of those players had the condition. This finding aims to offer a clearer picture of the long-term neurological impact associated with the sport. Major news organizations have highlighted the scale and significance of this research. Scientific American characterizes the findings as a landmark study, while The New York Times describes the project as a high-stakes effort intended to grasp the true rate of brain disease within the NFL.


WCVB reports that the Boston-based researchers are sharing these estimates to provide a more comprehensive understanding of the disease's reach. These outlets collectively emphasize the effort to move toward a more accurate statistical representation of CTE rather than relying on fragmented or incomplete data sets from previous years. The context of this research is rooted in the ongoing effort to determine how common CTE is among those who played in the NFL. By analyzing a 15-year span ending in 2023, the Boston researchers are attempting to address gaps in existing knowledge about brain disease. The high percentage cited in the study underscores the severity of the health risks associated with the league, as the focus remains on the physical toll experienced by former players. The study's methodology is presented as a way to refine the estimated rate of the disease, which has remained a subject of intense scrutiny and scientific investigation.


Future attention will likely focus on how the NFL and the medical community react to these updated estimates. Coverage indicates that the core goal of the Boston researchers was to produce a more complete estimate of the disease's prevalence. Based on the reported facts, the next steps involve processing this data to understand the full extent of the condition among former athletes. While the current findings establish a 75% estimate for the 2008 to 2023 period, the scientific community will continue to examine the rate of brain disease and the implications for player health and safety protocols.

## Multi-Source Evidence Table
| Source Outlet | Headline | Verification URL |
|---|---|---|
| Boston.com | Mike Vrabel responds to BU study on NFL players and CTE | [Source Link](https://news.google.com/rss/articles/CBMizAFBVV95cUxPTHNnN2ctakVjTDNaOFN0N2dLSzAxWVZ2TTVpd2xtUTlkcy02MW1wNC10Tnh1dFhDSHhjVE5qM2FhSjNZTUhtOEZpWndJUG11MElVXzFiNGxQZllfQ1kxd1FHLWlob3UwdzJBQ05vYnQ2ZURodXR3SS1kQkkyZVNlNzZMSVJCNG5TRnFDVnREbXlWeXZ5dmRIMlJScXlLZ1FNWDhLYVdoSnl1NF9oOXliS2txY1UwRkprU2NOSEZkaTJ6NFo5LU5xeVZiZ3I?oc=5) |
| ABC News - Breaking News, Latest News and Videos | New study estimates about 3 in 4 former NFL players had CTE | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxNT0ZaYTlON0tlejREOUxlUUV6WDU2WUl3ZVhPTmVvUlh0cUZja0w2TXpMZUpZZnl5UzRYOFo5UWQ3c2JNY2ZIc2x0bkFtRlphUGpoTFJKMlJpWUJWcGZJQWFTLUxJb1RsUEQzbUlIdlBGN3Y0dE1DMThjZ0dhT0t5VUFZNnRXVjd5U2hsStIBkgFBVV95cUxNUUVWaDJPOUdCdXVIcVFjdmZLWEF3aUVud0dTc3RwU2JnMTNxTEhzY256TTk1aUl3RWUwXzYtb0U5SXI1RDNsYU5CNEZWZjlrR1pyelBFb1ZoM1kzMHc1VzBmZG9CZXpQM0tES20xTG5XOEUxQV9fOGVnc2JPbWdYbFRuSW54anY1YUJNN3FCdndvZw?oc=5) |
| The New York Times | Can Scientists Make Football Safer? | [Source Link](https://news.google.com/rss/articles/CBMigwFBVV95cUxPaXY0U0NOZFphNVhKNjdMc1dsM2Z6c1k4Y01EOWkta25zZjJTckVYN0tabnhyN3RiMHZaNXktd1RhYUI5WFpQS2JwOHkwSEltWEhNd1dtTHRNaXhiUGFVbGkzNkRmNDRVNGRYOWtTWFpwQy1HelgzLTA2UjRMcm04VjQ5RQ?oc=5) |
| ABC News - Breaking News, Latest News and Videos | New study estimates about 3 in 4 former NFL players had CTE | [Source Link](https://news.google.com/rss/articles/CBMijAFBVV95cUxNT0ZaYTlON0tlejREOUxlUUV6WDU2WUl3ZVhPTmVvUlh0cUZja0w2TXpMZUpZZnl5UzRYOFo5UWQ3c2JNY2ZIc2x0bkFtRlphUGpoTFJKMlJpWUJWcGZJQWFTLUxJb1RsUEQzbUlIdlBGN3Y0dE1DMThjZ0dhT0t5VUFZNnRXVjd5U2hsSg?oc=5) |
| The New York Times | Can Scientists Make Football Safer? | [Source Link](https://news.google.com/rss/articles/CBMiigFBVV95cUxQM2gtZkRNM0VWR09uVnpXdUdKdjFnYy00NHFvRnRzOHZBcC13d25IUFF0QWhkYXNjbTF1eUJxQ0hBVVg0cFJIZlFNS0J4QzJ4M0ozYVZENVNhazRXeE5BWTFJMW9IZDZoN2d4LXpiZ0NndlVxWE02YW9NTUtfa1lhMV92MjE3V3dtX2c?oc=5) |
| The Guardian | New study estimates 75% of deceased ex-NFL players had brain disease CTE | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxObTVERnFfbkxKYm95RFU0d1FNVk5TbUVSdnZiaktKSDNRMDJMQTVPSUVuQlhYUGJkQVNRWkpKZzNoYnF6WEs0dmVKaGV0RjZOOW92RF9QUHJsMmduUWRYS2JhSWtLVlBxMnlhdWtHMGg5a1dGb0UwazlFaEJkLUtGbTlwV3U?oc=5) |
| The Boston Globe | A major BU study provides what could be the clearest look yet at how CTE has affected NFL players. The results are startling. | [Source Link](https://news.google.com/rss/articles/CBMie0FVX3lxTE9YVmRNRVU1QWptZGQ5VW9zUTczZnJ0a3d4djR2WXJsTlUtNFg5dXFVUFZhQ05iZTFqOVNHNW80cVRRSzJNcGN2YjJ3RmZNbEhzdlFNZ283Q2EtVkdjSU84WXMwaTc5NU5xVG42TmloSmgyRmxUcnZEOWNYbw?oc=5) |
| WCVB | Boston researchers share new, more complete estimate of CTE in ex-NFL players | [Source Link](https://news.google.com/rss/articles/CBMickFVX3lxTE03SUhiWVc5QkVLdVo4Q1hxcXphSGQyeTBfWUlZY01yMFpSY21xbU9BbVRPRG1HUERoQ0ZqVXJNM3k5ZUlSLUJoenhRWXZELUV2d2xsMGFpbHVNVWFabDF3RC1iUkJQRmZqUmpiMV9EaG40dw?oc=5) |
| Scientific American | Landmark study finds three in four NFL players die with CTE | [Source Link](https://news.google.com/rss/articles/CBMipgFBVV95cUxPd3hNdEV1TlVvXzNieUJEV0I2ek5zVE01bE80VEJpX3VoczFiSXVneG5TM0lWd3ZZV1BkNTBBRUhxeW9XYW5qN0NJb09qU01EakMybHllcy1qZkdQTkt2VE9Oa0NCZGxIbzYwTjRyM3dOYTNoZXh4dE1hLWNNeU5uV1k2VlMtX3JkR25PLW9RUmhXTHhPY25hUy05a2NjTzl4Nld4bWJB?oc=5) |
| The New York Times | The High-Stakes Effort to Grasp the True Rate of Brain Disease in the N.F.L. | [Source Link](https://news.google.com/rss/articles/CBMihAFBVV95cUxOUE80Q0hpTDVJWFhTX0p1eWJMVXF2NUdyMmk5NFRkaHpyRkkwNmpDMHFZWFdOMGNGV0tTUF9ITm9GY0hOWWNVUE9GQVpVVS1HZkFZQkkwMDRMYnNqTHNzTnMxdDgyMHdld0hRczY2QzVMWWhSbkNZdWxIVzZMeVBRNldYdmI?oc=5) |
| CNN | New study suggests 3 in 4 former NFL players who died from 2008 to 2023 had CTE | [Source Link](https://news.google.com/rss/articles/CBMibEFVX3lxTE91emREeXVaY2FsdURfWERGZV9ScThMeGJyZTVVMklMN05SOVY0bEhOS2lzZ1o4WTMtbl9iZkhJdDF6WktEelBwTWVhTFh1b0lMTHZqZ3NiY0lQNkM2TkhHbjZHVmJoMjh2RGZwRg?oc=5) |
| NBC News | Study estimates 75% of NFL players who died over 15-year span had CTE | [Source Link](https://news.google.com/rss/articles/CBMirwFBVV95cUxNWWYzUDNGV3NubFFIcGp1SHY2RlNkSmRGVXIxMXphbzVuUEpYakxmUFVEcm9xLThkQlFlZFA0Q2ZDU0dHV1pPWVNmRTdqMHlkQWVuY3dRQ2ZDUHJhMkhCSFZHZjdQVHN0OF9WeS1reXZhSU1pY1BWV1p5ZU55aTFVWUpRZ1pDeUkzUi1kUnk0b3lxYXExdF9ZM0lMRzdVcmxOZnpPNUpBdHpVRzFSR2Zr?oc=5) |

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*Canonical Source: https://pulse.byoviral.com/trend/2026-10-28/study-estimates-75-of-nfl-players-who-died-over-15-year-span-had-cte*