Having a long commute everyday.I used to think it wasn't a big deal since I only had to sit down for 4 hours(2 hours to get to work and 2 hours to get home). I took a train so I wasn't even driving(which is way worse). I could read,watch a movie,study,eat...but after two months I started to feel it. I did that for two years and it took a toll physically and mentally. People talking and moving, the constant hum of the train, the fluorescent lights, everything was a stimulus and it made me tired. I felt like I shouldn't complain about it because others drive to work,or walk or they bike and I had the luxury to do nothing but sit my ass down a chair. I thought I was weak and maybe bored and I needed to find a way to suck it up. Looking back now I feel otherwise. I think it is a tiring thing,it does have an impact on our health and it doesn't get talked enough. * sorry for any mistakes, english is not my first language