Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021*
Characteristic
Percentage of survey respondents
Sleep problems
77.9%
Headaches
75.2%
Trouble concentrating
73.1%
Irritability
72.9%
Memory problems
72.5%
Hearing problems
61.9%
Sensitivity to bright light
56%
Balance problems
55.4%
Other problems
18.1%
None of the above
5.5%
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* Respondents were members of the Wounded Warrior Project and are veterans and service members who incurred a physical or mental injury, illness, or wound while serving in the military on or after September 11, 2001.
Citation formats
Health problems after head-related trauma among U.S. veterans with the WWP as of 2021
As of 2021, around 78 percent of veterans and service members who incurred a physical or mental injury, illness, or wound while serving in the military on or after September 11, 2001 and who responded to the annual Wounded Warrior Project Survey in 2021 reported that problems sleeping either began or worsened after they had some form of head-related trauma. The Wounded Warrior Project (WWP) is a U.S. charity and veteran organization for veterans and service members who incurred a physical or mental injury, illness, or wound while serving in the military on or after September 11, 2001. This statistic illustrates health problems that began or worsened after head-related trauma among WWP members in the United States as of 2021.
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WWP. (February 22, 2022). Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 25, 2026, from /statistics/1321201/us-veterans-health-problems-head-related-trauma/
WWP. "Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021*." Chart. February 22, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 25, 2026. /statistics/1321201/us-veterans-health-problems-head-related-trauma/
WWP. (2022). Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 25, 2026. /statistics/1321201/us-veterans-health-problems-head-related-trauma/
WWP. "Share of U.S. Veteran and Active Service Members of The Wounded Warrior Project That Had Select Symptoms or Problems That Began or Worsened after Head-related Trauma as of 2021*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Feb 2022, /statistics/1321201/us-veterans-health-problems-head-related-trauma/
WWP, Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021* ÌÇÐÄÆƽâ°æ, /statistics/1321201/us-veterans-health-problems-head-related-trauma/ (last visited July 25, 2026)
Share of U.S. veteran and active service members of the Wounded Warrior Project that had select symptoms or problems that began or worsened after head-related trauma as of 2021* [Graph], WWP, February 22, 2022. [Online]. Available: /statistics/1321201/us-veterans-health-problems-head-related-trauma/
