Does anyone else become depressed by the complete lack of sunlight in Chengdu at this time of year?

I spent 5 days in the city in early October and never saw the sun - the days are either totally cloudy or smoggy, but no sun. Locals tell me that that's the way it is there! Ugh! I then took a plane to Shenyang in the Northeast and beautiful sunlight days in a row. Yes, a couple of days with smog but more sunshine thanks to those nice cold winds blowing in from Siberia. A much healthier place to visit, in my opinion.