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Surgeon Gabriel Weston uncovers extraordinary cases that are bringing new discoveries about the human body. This week, we meet a girl whose heart has formed outside her ribcage.

Gabriel Weston uncovers extraordinary cases that are bringing new discoveries about the human body. In this episode, we meet a man who injects himself with deadly snake venom.

Gabriel Weston explores extraordinary cases that are helping uncover the mysteries of the human body, including a man who feels no pain and a woman who can smell Parkinson's.

Gabriel Weston uncovers extraordinary cases that are revealing new discoveries about the human body, including a girl with two hearts and a man who can sing two notes at once.

Gabriel Weston uncovers extraordinary cases that are disclosing new discoveries about the human body, including a man with bones as strong as granite.

Gabriel Weston unlocks the secrets of the human body, meeting an engineer who fixed his own heart and a toddler whose bones were repaired before he was even born.