In the world of "Deus Ex: Human Revolution," the augmentations make the man. And in this case, the man is Adam Jensen, the head of security for Sarif Industries. After a particuarly nasty terrorist attack, Jensen is forced to become augmented to save his life. He's none too thrilled, but you should be, as augmentations give you all sorts of awesome powers as you play through the game.
Admittedly some of the augmentations are more useful than others, and having spent a considerable time with the game, we thought it proper to give you the rundown on all of the augmentations in "Deus Ex: Human Revolution," letting you know which ones are mandatory, which ones are fun and which ones are best left to the non-cybernetic squares.
A quick note about how you unlock new augmentations in the game. Completing objectives will earn Jensen experience points and eventually level him up. Every time he reaches a new level, he'll earn a Praxis point. These are basically skill points which you can use to unlock new augmentations. You can also earn Praxis points as items hidden in the world, and you can purchase them for a hefty sum at a nearby med clinic.