Trading stocks can be like gambling, as Creativei says. But, there's a difference between trading (short term) and investing in stocks. I have some stocks (not much), and they are quite down at the moment, but a couple are still worth more than what I put in during the last 5 or so years. Now may actually be a good time to invest since the prices are so low. It's like the bargain bin. However, it's still risky, of course. I'm more interested in long term solid companies that are also ethical. I never do day trading or anything like that. Anyway, I haven't invested anything in a long time. Now, I'm only investing in micro"stock" :) ! Fultonsphoto may have the right question. Also, many problems come from greed, which can be in anything, even micro"stock". We should always be wary of greed in ourselves and get rid of it quick.
By the way Linqong, those stock market images are great.