Bad memories erased, no kooky helmet required.

In a few years you might have a pill to help you forget your bad breakup just the way Jim Carey did in Eternal Sunshine of the Spotless Mind. With a high dose of just one enzyme, scientists can now erase very specific memories while you're in the act of recalling them. The enzyme known as CaMKII is linked to learning and memory, and Georgia neuroscientist Joe Z. Tsien and his team used it to induce extremely targeted memory-erasure in mice. Tsien thinks the process might help humans lay traumatic memories to rest.

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