← Explained

Season 3

14 episodes · 2021

  1. 1

    Sugar

    Jul 16, 202124 min★ 7.4

    Once crucial for survival, sugar now poses a health risk. Is there a way to satisfy our primeval craving for sweetness in a healthy, balanced way?

  2. 2

    Royalty

    Jul 23, 202124 min★ 6.8

    How do monarchies survive when they no longer wield power? By presenting a royal fairy tale that may not reflect the reality of the past — or present.

  3. 3

    Flags

    Jul 30, 202122 min★ 6.8

    A flag can unite, divide and terrorize. Explore how a piece of cloth transformed into a powerful symbol of both love and hate, freedom and oppression.

  4. 4

    Dogs

    Aug 6, 202123 min★ 7.7

    Who's a good dog? They all are! From puppy-dog eyes to feats of heroism, see how canines evolved into humankind's best friends and sources of pure love.

  5. 5

    The End of Oil

    Aug 13, 202121 min★ 7.4

    Oil led to huge advancements - and vast inequities. As the planet warms, why is it so hard to turn away from fossil fuels, and can it be done in time?

  6. 6

    Chess

    Aug 20, 202123 min★ 7.8

    For centuries, chess has captured hearts and minds — and pawns — and it's more popular than ever. What makes this ever-changing board game so special?

  7. 7

    Your Skin

    Aug 27, 202121 min★ 7.2

    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.

  8. 8

    Apologies

    Sep 3, 202122 min★ 6.7

    Apologizing is tough, and in this era of public mea culpas, forgiveness isn't guaranteed. What makes for a good apology, and why does it hold such power?

  9. 9

    Hurricanes

    Sep 10, 202123 min★ 6.9

    As the planet warms, hurricanes could become even more dangerous and destructive.

  10. 10

    Plastic Surgery

    Sep 17, 202124 min★ 6.3

    The Instagram face. A shapely posterior. Cosmetic surgery can make the latest beauty trends a reality. Explore its origins and effects, inside and out.

  11. 11

    Dance Crazes

    Sep 24, 202120 min★ 6.3

    From the waltz to voguing, dance crazes have connected people throughout history. But when a dance catches on, who gets the credit — and compensation?

  12. 12

    Time

    Oct 1, 202125 min★ 7.8

    Time flies… sometimes. Its passage can seem to speed up and slow down. Why do we experience time the way we do, and how do we take back some control?

  13. 13

    Country Music

    Oct 8, 202125 min★ 6.6

    Dirt roads. Pickup trucks. Hip-hop? As the borders around country music shift, who decides what defines the popular genre, and who gets to be a star?

  14. 14

    Fairy Tales

    Oct 15, 202124 min★ 7.2

    Fairy tales have survived thousands of years for a reason. Explore their far-flung history and how the stories speak to fundamental human concerns.