Subways And Trains. Why Do They Drain Energy?

[Makrovsky]

Hey guys, I've noticed every time I take the subway or a train, I'm drained of energy afterwards. Like, I could be ok. I just take a 20 minute subway ride, and I feel drained and uneasy. Does that happen to anyone else? Is it related to electromagnetism? Or because it's generally ugly and you see everyone drained there as well? Or what the fuc...??