I love how this video is suppose to help you detect lies others tell you. But I guess I'm the only one that while watching this video is taking notes so I can tell better lies. I'm not a frequent liar but I must confess sometimes I have to lie so I don't hurt others feelings or so I don't make a fool of myself. One word I didn't understand was physiology. It means the organic functions in an organism. They used this word while saying that maybe telling lies can produce physiological changes.