Grow • 2017 • episode "S1E1" • The Human Body: Secrets of Your Life Revealed

45:49

On the front lines of the hunt for killer viruses, a shocking discovery is made: viruses, once thought to be a menace to humankind, may in fact be the ultimate creators. Since the beginning of time, they have played a critical role in evolution, shaping us and perhaps even creating us. How could that be? How can an entity seemingly programmed for destruction lead to genetic diversity and new species? To many people, viruses are simply agents for disease, but to Dr. Luis Villarreal, Director of the Center for Virus Research at the University of California Irvine, they may possess far greater power than originally thought. He guides us through evidence that viruses gave rise to the first complex cells, played a role in the diversification of life, changed how our young are born, drove evolution, and perhaps gave us emotions. One expert even suggests that an ancient virus could have entered our genes and rewired us for monogamy. National Geographic investigates a provocative new theory that suggests that all life - including humans - is descended from viruses. Taking us through African jungles in search for new strains, this episode of Explorer presents a startling new view of viruses - toward what may be a remarkable evolutionary moment: the rise of a new human species.

2008 • Health

84:38

The film exposes the most popular diets on the planet as well as several misconceptions about weight loss and nutrition. The film follows the audacious filmmaker Michal Siewierski (Food Choices) in his treacherous journey.

2019 • Health

46:59

Maverick doctors supercharge killer T cells, creating a breakthrough treatment for cancer.

S2E3 • Breakthrough National Geographic • 2017 • Health

22:13

Don't panic, but our skin plays host to trillions of bacteria, fungi, mites and other microscopic guests. Go beyond skin-deep with our largest organ.

S3E7 • Explained • 2021 • Health

52:33

Dive into the stories of a pairs figure skating team, a perfumer, a cave explorer and a musician to decipher how different ways of sensing the world all create their own vivid and unique picture.

S1E5 • Human: The World Within • 2021 • Health

59:01

Geneticist Spencer Wells presents a broad view of the DNA Testing industry from its beginnings to its broader acceptance by the general public. Now an individual can, for the first time in history, read his own genetic blueprints.

S1E5 • Curiosity Retreats: 2016 Lectures • 2016 • Health