The world is affected by an obesity epidemic, but why isn't everyone succumbing? A controversial overeating experiment aims to identify why it's hard for some people to bulk up. This episode looks at what it is about some people that makes it hard for them to gain weight.

Episode Viewers and Ratings

Season 47 Episode 1 of Horizon resulted in a 0.00 rating in the 18-49 demographic.

Horizon Season 47 Episodes...

• s47e01 - Why Are Thin People Not Fat?
• s47e02 - Cannabis: The Evil Weed?
• s47e03 - Why Do We Dream?
• s47e04 - Can We Make a Star on Earth?
• s47e05 - The Secret Life of Your Bodyclock
• s47e06 - What's the Problem with Nudity?
• s47e07 - How to Survive a Disaster
• s47e08 - Who Do You Want Your Child to Be?
• s47e09 - Why Can't We Predict Earthquakes?
• s47e10 - Alan and Marcus Go Forth and Multiply
• s47e11 - How Violent Are You?
• s47e12 - Mars: A Horizon Guide

Horizon Show Summary

Horizon is BBC Two's flagship 50-minute science documentary series.

Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia.

In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand.

In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

In September 2014 it celebrated its 50th anniversary and it continues to enjoy outstanding critical acclaim.