← Explained

Season 3

14 episode 2021-07-16
  1. E1 · Sugar

    E1 · Sugar

    24 mnt

    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?

    2021-07-16

  2. E2 · Royalty

    E2 · Royalty

    25 mnt

    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.

    2021-07-23

  3. E3 · Flags

    E3 · Flags

    25 mnt

    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.

    2021-07-30

  4. E4 · Dogs

    E4 · Dogs

    20 mnt

    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.

    2021-08-06

  5. E5 · The End of Oil

    E5 · The End of Oil

    24 mnt

    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?

    2021-08-13

  6. E6 · Chess

    E6 · Chess

    23 mnt

    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?

    2021-08-20

  7. E7 · Your Skin

    E7 · Your Skin

    22 mnt

    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.

    2021-08-27

  8. E8 · Apologies

    E8 · Apologies

    21 mnt

    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?

    2021-09-03

  9. E9 · Hurricanes

    E9 · Hurricanes

    23 mnt

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

    2021-09-10

  10. E10 · Plastic Surgery

    E10 · Plastic Surgery

    21 mnt

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

    2021-09-17

  11. E11 · Dance Crazes

    E11 · Dance Crazes

    23 mnt

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

    2021-09-24

  12. E12 · Time

    E12 · Time

    22 mnt

    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?

    2021-10-01

  13. E13 · Country Music

    E13 · Country Music

    24 mnt

    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?

    2021-10-08

  14. E14 · Fairy Tales

    E14 · Fairy Tales

    24 mnt

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

    2021-10-15