A study of more than 250,000 service members begun in 2001 released some preliminary findings on Friday, to celebrate the effort’s 20th anniversary.

According to mounting scientific evidence, the prevalence of post-traumatic stress syndrome among veterans of recent wars is substantially lower than is commonly believed.

The Millennium Cohort Study, Army STARRS, and other studies show that mental-health issues among troops can stem from childhood trauma, which is nearly impossible to screen for and something experts say shouldn't necessarily disqualify recruits.

Recent research from the Millennium Cohort Study found that military personnel who deployed with combat experiences were more likely to report back pain after deployment than service members who deployed without combat experience. Study findings were recently published in the November issue of Spine.

The "Advance for Respiratory Care & Sleep Medicine" publication covers some cutting edge military medicine research that is currently ongoing. Highlighted in this article is the Millennium Cohort Study's contributions to U.S. military's epidemiological efforts.

Funding from the Michael J. Fox Foundation (MJFF) will support four projects investigating possible connections between toxic environmental factors and Parkinson’s disease, including those encountered in military service and daily life exposure to pesticides and air pollution.

A new study in the American Journal of Health Promotion finds that the lifestyle of veterans both pre- and post-deployment influences their post-deployment wellness.

Deployed women who underwent "combat-like" experiences in Iraq and Afghanistan are much more likely to report sexual harassment and sexual assault compared with other deployed women, according to a new study.

Among service members with no history of mental disorder diagnosis or psychotropic medication prescription, and who screened negative for depression, anxiety, PTSD and panic pre-deployment, 3.4% developed PTSD, less than 1% developed anxiety and less than 2% developed depression after first deployment. Service members who reported sleeping fewer than six hours per night pre-deployment were significantly more likely to develop PTSD than those sleeping seven hours per night. Additionally, those reporting insomnia symptoms pre-deployment were at higher risk for new-onset PTSD, anxiety and depression.

Analysis of factors associated with death by suicide during and after military service found that suicide was most common among those with bipolar disorder, depression and alcohol-related problems. Additionally, death by suicide was associated with fewer cumulative days of deployment, the occupation of combat specialist, deployment experience pre-2001 and male gender. Overall, 12.8% of the deaths in the current sample were due to suicide.