The Honolulu Heart Program studies began in 1965 with a cohort of 8006 Japanese American men and continue to this day. Much of what we know about the health and aging of Japanese American men is based on the several hundred publications that have come out of these studies.
The Seattle Kame Project, an eleven-year prospective cohort study on aging, cognition, and dementia in Japanese American older men and women in Seattle and King County, Washington, started in 1991, has also been instrumental in increasing the scope of knowledge about Japanese American elders.
Studies, in general, have tended to group Japanese Americans with other Asian Americans thereby rendering it difficult to draw conclusions specific to the Japanese Americans.