How you can tell if a candidate is being truthful

BOSTON — It's hard to tell if a candidate is being honest, psychologists say it is possible to tell if they are feeling stressed.

Boston College Psychology Professor Joe Tecce says there are three clues anybody can use for the first debate between Hillary Clinton and Donald Trump.

1. Eye blinks

Eye blinks can signal uneasiness. Tecce has been watching file videos of both candidates for months. He found Trump blinks more than Clinton when answering questions, blinking an average of 65 blinks per minute to Clinton's 40 blinks per minute.

2. Head and shoulder movements

3. If they gaze away on a tough question

Live coverage and analysis after the debates on FOX25 News at 10:30.