A new study suggests a cup of coffee a day may beef up the memory. Researchers at Johns Hopkins University say caffeine enhances certain memories for up to 24 hours after it's consumed. They asked participants to look at hundreds of common images on a computer screen. People who'd taken caffeine were better at distinguishing similar pictures from original ones.

For more on this study we turn to the KFBK newsline and speak study author, UC Irvine Professor Michael Yassa.