精选优质文档-倾情为你奉上大学体验英语四(综合教程)Unit 6Psychological HealthListen and TalkLead inAre you feeling really sad, tired, and worried most of the time? Are these feelings lasting more than a few days? If yes, you may have depression. Depression is a (S1) medical illness that (S2) the brain.You may want to know why you feel depressed.” There may be (S3) causes. Depression may happen because of (S4) in your brain. Depression runs in some (S5) . This (S6) that someone