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Here’s Why John Mayer Has Donated Millions to Funding Research Into PTSD in Veterans
John Mayer has donated about $5 million to research into post-traumatic stress disorder (PTSD) among military veterans, motivated by visits to wounded service personnel and a desire to address both the psychological and physical effects of trauma. Through his Heart and Armor nonprofit, launched in 2019, he is funding studies and support resources intended to improve understanding of veterans’ health needs and reduce stigma around PTSD.
Mayer says his interest began after visiting wounded-warrior barracks at Camp Lejeune in the late 2000s, an experience that changed his previously narrow understanding of PTSD. Research he has supported covers exercise, women’s eating habits, military sexual trauma and sleep; in 2025, he held a private concert to fund University of California, San Francisco research on sleep and veteran health. Alongside this work, he is making a new album, his first since 2021’s Sob Rock.
In short
- Mayer has given roughly $5 million to veteran PTSD research.
- His Heart and Armor charity funds studies and support resources.
- He also raised funds for research into veterans’ sleep.
Explained simply
Post-traumatic stress disorder (PTSD) is a psychological condition that can develop after experiencing or witnessing traumatic events, including combat. Many military veterans experience PTSD due to their service, and it can significantly affect their mental health, relationships and daily functioning. Understanding and treating PTSD in this population has become an important area of focus for medical research and support organisations.
Musician John Mayer has committed approximately $5 million to funding research into PTSD among veterans through his nonprofit organisation Heart and Armor. His involvement began after visiting wounded service personnel at military facilities in the late 2000s, an experience that deepened his understanding of how trauma affects veterans' lives. Since founding Heart and Armor in 2019, he has been directing resources into various research projects aimed at improving support and care.
The research supported by Mayer's foundation covers multiple aspects of veteran health, including the effects of exercise, sleep problems, military sexual trauma and eating difficulties. By funding these studies, the initiative aims to expand knowledge about how PTSD manifests differently and improve targeted treatments. The work also seeks to reduce stigma around PTSD, encouraging more veterans to seek help and support.