This is the S-Bahn in Munich. It is by far the cleanest public transportation i have ever been on, in fact all of Munich and so far most all of Germany is so clean. This is nothing like the BART in San Francisco. I dont understand why more people dont live here. Low unemployment, thriving economy, very clean, beautiful buildings and scenery, Hot girls bringing you beer, great bear and food, just a train ride from many historical cities and castles, many things to do. This city is amazing.
Also many people are not driving as much as what i saw in the states, many people are very active, even the elderly people are always out walking and many people are riding bikes. I use to have stress and a hard time falling asleep, then i moved to Germany and got on a normal schedule, was active during the day and now i slept like a baby at night and have deep meaningful conversations with my host families and friends over a glass of wine. But seriously i would recommend you become active and take up a sport if you find yourself stressed or not being able to fall asleep at night and wake up tired. Buy a bike or something like this.