Almost everyone knows of someone who went away to military service and just wasn’t the same when he or she returned. Oftentimes, and especially with combat veterans, the change has come about because of Post Traumatic Stress (PTS), which can become a chronic psychological disorder (Post Traumatic Stress Disorder, or PTSD). If untreated, military-related psychological trauma such as PTSD can have significant negative effects on the individual veteran, family members and the community. Welcome Home Vets provides an ongoing series of four classes to help family members, friends, community members and veterans understand what happened and what they can do to help. Class topics include PTSD, TBI and Other Psychological Trauma; Military Culture and the Warrior Spirit; Drugs, Alcohol and Codependency; and Medications and PTSD. The next series starts at 6 p.m. Tuesday at the Welcome Home Vets office, 248 Mill St., Grass Valley (the Lola Montez house). These classes are open to the public and are free. Any necessary psychological treatment is also provided to veterans and their family members free of charge; they have already paid the price! Reservations are not necessary to attend classes, but for additional information and a complete class schedule, call Welcome Home Vets at 530-272-3300.