Depression is a hell of a drug. Add in constant doom and gloom from every corner of society (why live to be 120 if it's all downhill from here?), a bit of apathy, and a dash of hedonism (with unlimited distractions-you can have endless entertainment without leaving the house) and you've got a potent cocktail.

I'm not sure most humans are built to overcome these hurdles, and they're just becoming larger as time goes on.