She claimed she can TELL IF ANYONE IS LYING using the strength in their arm. But Dr. Martha Beck's demonstration for Steven Bartlett on Diary of a CEO had many issues from a psychological point of view. Has she REALLY cracked the code on lie detection or is "Oprah's life coach" lying about lying? Find out now! For Early access to all videos, including this one, become a member of The Behavioral Arts here: https://www.youtube.com/@TheBehavioralArts/join Watch full interview here: https://www.youtube.com/watch?v=fajtQSCHfvE&t=4669s Follow Danny for quick & easy restaurant quality recipes here: https://www.youtube.com/@UCTbX9lK4RJ0voG_3NkfvtFg Checkout my video about getting the truth out of people: https://www.youtube.com/watch?v=huAvcM6Lu5c Note: although the process she uses resembles a procedure some kinesiologists use in alternative medicine, it is actually a lot closer to tricks used for entertainment or marketing scams due to the fundamental claim and the faulty procedure. The claim that lying makes the body weak is unfounded and the fact that she started by saying the result to the test subject voids the whole test. Those who believe in the practice of muscle tests in alternative medicine don't usually tell the patient what is being tested and what the expected result is. Although the legitimacy of such practices are highly debated, at the very least the process is usually more fair than this demonstration. TIMESTAMPS 01:28 How The Body Reacts When We Lie?! 04:08 Who is Dr. Martha Beck? 09:39 How to Gain Peoples' Trust 12:18 Is She Making Things Up? 14:40 Does This Trick Catch Liars? 19:18 How Did I Do This? 22:55 How She Deceived the Host 29:18 How do Polygraph Machines Work? 30:22 She Lied about Lying! 34:13 How the Internet Manipulates us #behavioralanalysis #sociology #psychology #socialpsychology #oprah #oprahwinfrey #doac #diaryofaceo #thebehavioralarts #liedetection #polygraph #howtoreadpeople #deception