Brave New World by Aldous Huxley is a dystopic novel. This means it is a representation of a "perfect" society gone completely wrong. This being said, our society hasn't gone completely wrong, but there are many things present that COULD go wrong quickly. Here are some examples:
1) The way that we reproduce isn't always natural. Many couples use implantation methods (infertile couples, gay couples, and sometimes single individuals).
2) THe use of stimulants to escape an actual reality. Drugs and medicine are used in both the novel and current society to escape "real life".
3)Technology. In Brave New World, "feelies" are a way to enjoy yourself. Look around you next time you're out and about. Everyone's faces are buried in their phones.
4) Conformity. In Brave New World, all of the characters are constantly trying to conform to their peers and the government. Again, look around you. Going green, wearing skinny jeans, and listening to certain "types" of music are the same type of conformity, just on a different level.
5) Separation of sex and love. In Brave New World you don't have to love someone to have sex with them. Nor do you have to have sex with someone to prove you love them--the two are not combined. Unfortunately, this is becoming more and more common in today's world.
6) Children aren't hurt by death. They don't react when someone in their family or someone they knew dies. This is happening more and more often today. People are not always as hurt when someone dies. You could chalk this up to violence in video games creating a more "pain resistant" youth.