Part 2 • 2021 • episode "2" • The Virus That Shocked the World PBS FRONTLINE

42:56

Bacteria, viruses, but also fungus spores, algae, pollen, and even insects: microorganisms are constantly drifting through the sky. How can so many living beings find their way into the air and be circulating in our atmosphere? How do they survive? What is their influence on our lives and our entire living world? Biodiversity, health, climate - scientists are only now discovering just how much this discreet airborne "plankton" affects our lives and the entire ecosystem on Earth. But despite its many virtues, this magic matter is now under threat from human activity. With help from experts and using 3D visual effects, this scientific investigation will take us to the heart of a world that is still very little understood, and will reveal the diversity and fragility of the air we breathe.

2023 • Health

9:13

Somewhere in your body, your immune system just quietly killed one of your own cells, stopping it from becoming cancer, and saving your life. It does that all the time. The vast majority of cancer cells you develop will be killed without you ever noticing. Which is an incredibly hard job because of what cancer cells are: parts of yourself that start to behave as individuals even if it hurts you. What is cancer and how does your body kill it all the time?

In a Nutshell • 2023 • Health

60:25

We are living in a time that has been described as the age of loneliness. Statistics reveal that over the last few decades, the number of admittedly lonely people has doubled. Many individuals report they have trouble making friends and finding others to confide in. Despite advances in technology, living conditions, education and healthcare, it's apparent that we are feeling more alone than ever before. While it's true that this isolation impacts us psychologically and emotionally, what many of us don't realize is the negative impact it has on every aspect of our health and well-being. So what's caused this? How have we become so Disconnected? Wellness expert Tamer Soliman attempts to answer these questions by visiting cities across North America. Through interviews with local citizens, community activists, and leading authorities on social, economic and urban design, Tamer discovers the reasons behind this loneliness epidemic and the true cost it has on our lives. This fascinating documentary invites us to reflect on our relationships with those around us and raises the question: Is it possible to overcome our modern day culture of disconnectedness and rediscover how essential we are to each other?

2020 • Health

48:02

This is the breathtaking story of Daniel Tammet. A twenty-something with extraordinary mental abilities, Daniel is one of the world's few savants. He can do calculations to 100 decimal places in his head, and learn a language in a week.

2005 • Health

4:34

In the United States, it’s estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn’t just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep.

TED-Ed • 2015 • Health

3:54

After drinking a few glasses of water on a hot day, you might be struck with a sudden ... urge. Behind that feeling are two bean-shaped organs that work as fine-tuned internal sensors.

TED-Ed • Health