How can i treat depression in adults?

Tough question : Depends on type of depression, situational depression depends on adjusting or accepting the environment change. Primary depression on the other side, will need medication and/or psychotherapy. Hope that helps.

Depression remedies: Include exercising, engaging in social interaction & engrossing activities, practicing gratitude, doing kind things for others, learning and practicing stress management, developing & committing to meaningful goals, avoiding negative thinking & negative comparisons with others, & talking to empathic & trusted people. If those aren't enough, talk to a mental health professional.