The Human Longevity Project docuseries episode Toxic Planet addresses the key challenges of staying healthy in a world full of harmful chemicals.

In the past century, humans have harnessed the power of chemicals, and in doing so have released harmful toxins into the world.

We are exposed to these toxins in the products we use, the food we eat, the water we drink, and the air we breathe.

Since it's impossible to avoid toxins, it can also be difficult to stay healthy in our modern world.

The Human Longevity Project is a nine-part docuseries and brainchild of Jason Prall, an entrepreneur who used his own battle with chronic illness to find answers.

Each episode combines insight from experts with anecdotes from senior citizens around the world to shine a light on humans' abilities to live long lives.

The fourth episode, Toxic Planet: How to Be Healthy in a Sick World, explores the modern world's issue with toxins, the effects they have on the human body, and how we can help our bodies to cope.