Is Weight Determined By Nature or Nurture? | Earth Lab

Is there a gene that determines body weight? Two identical twins might hold the answer by looking at epigenetics.
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Horizon: The Truth About Fat

Surgeon Gabriel Weston discovers the surprising truth about why so many people are piling on the pounds, and how to fight the fat epidemic. She discovers the hidden battles of hormones that control people's appetites, and sees the latest surgery that fundamentally changes what a patient wants to eat by altering how their brains work. Gabriel is shocked to find out that when it comes to being overweight, it is not always your fault you are fat.


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