Human: The World Within
Episode 3 Preview | Fuel

Our Sense of Smell
Our sense of smell is shaped by hair follicles in our sinus known as cilia.
Our sense of smell is shaped by hair follicles in our sinus known as cilia.

Episode 2 Preview | Pulse
See the world beneath the human heartbeat that makes our craziest feats possible.
See the world beneath the human heartbeat that makes our craziest feats possible.
Episode 3 Preview | Fuel
Journey through the factory at the center of our bodies that turns food into energy.
Journey through the factory at the center of our bodies that turns food into energy.

Episode 4 Preview | Defend
Uncover how the human body defends itself in an increasingly dangerous global environment.
Uncover how the human body defends itself in an increasingly dangerous global environment.

Episode 5 Preview | Sense
Explore the incredible world of human sensation and how it defines our reality.
Explore the incredible world of human sensation and how it defines our reality.

Episode 1 Preview | Birth
Learn the story of human reproduction from attraction to a baby’s first breath.
Learn the story of human reproduction from attraction to a baby’s first breath.

Episode 6 Preview | React
See how the technology of the brain and nervous system shape our experience of the world.
See how the technology of the brain and nervous system shape our experience of the world.

The Human Body's Nervous System
An introduction to the amazing functions of the human body's nervous system.
An introduction to the amazing functions of the human body's nervous system.

Engineering Lost Function Inside the Body
Jason is the only person with a prosthetic arm able to sense feeling in the brain.
Jason is the only person with a prosthetic arm able to sense feeling in the brain.

Proprioception - The Sixth Sense
Proprioception allows us to recognize where our bodies are physically exist in space.
Proprioception allows us to recognize where our bodies are physically exist in space.

The Human Body's Five Senses
An introduction into the amazing functions of the human body's five senses.
An introduction into the amazing functions of the human body's five senses.

An Introduction to the Brain and Neurons
The brain is mission control of the human body and the nervous system.
The brain is mission control of the human body and the nervous system.

The Adaptive Quality of Our Senses
When we lose one of our senses, others fill the void to process the lost information.
When we lose one of our senses, others fill the void to process the lost information.

The Immune System
An introduction into the amazing functions of the human body's immune system.
An introduction into the amazing functions of the human body's immune system.

The Digestive System
An introduction to the amazing functions of the human body's digestive system.
An introduction to the amazing functions of the human body's digestive system.

The Gut Microbiome is the Hub of Our Immune System
The Gut microbiome contains bacteria that keep us healthy when well fed and tended to.
The Gut microbiome contains bacteria that keep us healthy when well fed and tended to.

Blood Vessels and Circulatory Movement
Human bodies are designed to move in order to circulate blood and nutrients to every cell.
Human bodies are designed to move in order to circulate blood and nutrients to every cell.

The Science Behind the Pulse in Our Bodies
Human life depends on our bodies ability to process oxygen to keep our cells alive.
Human life depends on our bodies ability to process oxygen to keep our cells alive.

Functions of the Heart and Lungs
Our heart and lungs circulate oxygen throughout our blood vessels to keep cells alive.
Our heart and lungs circulate oxygen throughout our blood vessels to keep cells alive.

Data Processing in the Brain
All sight is translated into electrical impulses via the retina to the brain.
All sight is translated into electrical impulses via the retina to the brain.

How Pain is Processed in Our Nerves
Pain travels to our brain as neural impulses when something is wrong in our bodies.
Pain travels to our brain as neural impulses when something is wrong in our bodies.