Journalist Miles O'Brien recently went on a whirlwind tour peeking at what's up in the world in the world of bionics. It reads like a greatest hits list, with exoskeletons, bionic arms and eyes and ears, and even some mind control thrown in for good measure.

Even through traumatic brain injury has the word "traumatic" in it, it's often the case that soldiers in combat are exposed to things blowing up that leave mild to moderate brain injuries that go undetected. DARPA's new field blast gauge is designed to help medics tell exactly how much blast exposure someone has, and whether they need treatment.

When it comes to birth control, it's a lot harder figuring out how to stop a bajillion little sperm than one little egg, but a scientist in India has managed to develop an injection for men that has so far proven to be 100% effective and completely reversible with no side effects. Sign me up.

Generally, you want to avoid getting infected with a virus. But a new study shows that scientists could use a virus to trick your brain into making you less hungry. Hey, it's easier than exercising!