Premise: Rituals and customs accepted in one culture may be thought of as downright bizarre in another. ``Taboo'' delves into that dichotomy, taking viewers across cultural borders to explore traditional beliefs and deliberate lifestyle choices, ranging from body modification and gender decisions to nudity and spiritual quests that test the limits of the human body.
S09, E04 (First Aired: Jan. 24, 2012)
Heroin addicts purge their habit in a brutal detox; an asthma treatment that involves swallowing a live animal; animal sacrifice for pain relief.
S04, E05 (First Aired: Aug. 22, 2007)
Measuring people's worth by the ability to overcome the fight-or-flight instinct.