About mental stress results of 9,741
36:56
49:24
43:47
68:24
49:56
66:40
173:00
55:48
35:18
51:02
27:56
49:55
41:05
46:15
36:24
42:32
37:49
53:06
40:02
40:42
61:50
56:02
89:50
76:34
78:07
52:08
188:03
45:57
151:06
39:10
152:27
39:02![Lecture: Improbable Democracy Peter Joseph 9/8/17 [ The Zeitgeist Movement ]](https://thumbnail.voicetube.com/w/480/h/270/rg1nSvYgCYE.jpg)
50:03
50:03
45:29
47:32
89:00
110:56
61:32
60:10
58:38
42:55
34:31
56:36
33:02
39:47