Can stress and depression affect muscle growth?

I am 25 year old male, I am planning on starting weight training soon. I am a pessimist and am a night person, i stay up late at night sometimes all night and I am often stressed and depressed. I have heard that being depressed affects muscle growth to some extent and thus one should try to stay depressed, is it really true? will the depression affect the weight training output?, Thanks

staying depressed for any reason probably is not a good idea. some people that are depressed do not eat or sleep well. i suppose if you are not eating well, because u are depressed it can affect your muscle growth on the negative side. the good news is that it is known that exercise is a good way to alleviate stress, and help with depression. so i would say that stress and depression could effect your muscle growth in a negative way. no body likes being depressed or stressed, and i think it may help if you are able to identify your stressors, get into a better routine, and eating habits and you will be more successful at weight training program. good luck to you