While I agree with Frog's statements, there are some mitigating factors at work in modern human populations that reduce the effectiveness of normal natural selection.
The rate of change in the modern world outpaces the rate of mutation.
Yes, the rate of change in the West is much faster than it is in, say, sub-saharan Africa, but overall, the amount life everywhere has changed in the last 500 years is far greater than the amount of change that took place in the 5000 years before that.
Additionally, humanity is insane. Being slightly better able to survive drought might be selected for, but a better adaptation would be immunity to ethnic cleansing.
However, the light has not gone out on human evolution -
Here are some things to look for in the future:
Immunity to mercury poisoning
Immunity to solar radiation
You feel me?