May 22, 2013 -- Updated 2107 GMT (0507 HKT)

Trust your memory? Bad idea

You probably feel pretty attached to your memories -- they're yours, after all. But one conversation with Elizabeth Loftus may shake your confidence about everything you think you remember.

Follow the Fit Nation 2013 team

Six CNN viewers were selected to be a part of the Fit Nation Triathlon Challenge program. Follow the "6-pack" as they train for a September triathlon.
CNN TV Schedule | What's On |

CNN TV

with Becky Anderson
Mon-Fri 2200 CET
Every Weekend
Fri 2200 HK, Sat 2100 CET
Weeknights
Mon-Fri: 2130 CET, 1930 HK