I once did a silent meditation retreat for 10 days straight. The focus of the meditation was solely on sensations in the body. After a few days of only meditating, with no talking, reading, writing, exercising or ANYTHING, it became clear that my thoughts and feelings shifted regardless of external circumstance (since there was nothing happening). Sometimes I was happy, sometimes I was sad, sometimes angry etc., and the deeper I got into the meditation the more I realized the connection between my emotions and the actual sensations in my body. For this reason, parts of this Ted talk really resonated with me. I found Cuddy’s experiment particularly fascinating. What a great concept to test the feelings that come from powerful body language vs. weak. I think Chinese medicine relates to these concepts too… can anyone shed some more light the science of all this?