Microorganisms: The Air We Breathe • 2023

58:46

Is there any way to slow or even prevent the ravages of time? Veteran presenter Johnny Ball looks back over the 45 years that Horizon, and he, have been on air to find out what science has learned about how and why we grow old. Charting developments from macabre early claims of rejuvenation to the latest cutting-edge breakthroughs, Johnny discovers the sense of a personal mission that drives many scientists and asks whether we are really any closer to achieving the dream of immortality.

Horizon • 2014 • Health

44:43

In this episode, they unpick the dramatic shift in advice on drinking alcohol. After warnings that there's no longer any safe limit, what's the truth on whether it's still ok to have a drink? And what about all the previous reports that suggest the occasional drink might actually be a good thing? The shocking secrets of how Britain snacks are revealed, but it seems the mid-afternoon energy slump that prompts millions to reach for treats may just be all in the mind. Also, the controversial 5:2 diet is put to the test. With the experts still divided, could regular fast days really be the key to losing weight?

S1E5 • Food: Truth or Scare • 2016 • Health

43:33

Sleep has long been regarded as nothing more than a way to charge our batteries. But what if it can control our weight, allow us to make memories, and help us to fight off diseases like Alzheimer’s? We travel the world to investigate how revolutionary new technology has revealed the sleeping brain as an energetic and purposeful machine.

2016 • Health

6:05

Explore how heat waves affect the body, what levels of extreme heat we can survive, and what you can do to manage high temperatures.

TED-Ed • 2024 • Health

4:26

Has anyone ever told you, “Stand up straight!” or scolded you for slouching at a family dinner? Comments like that might be annoying—but they’re not wrong. Your posture is the foundation for every movement your body makes and can determine how well your body adapts to the stresses on it. Murat Dalkilinç gives the pros of good posture.

TED-Ed • 2015 • Health

45:13

Following reports that taking extra vitamins is pointless and possibly even dangerous, Gloria discovers whether the vitamins she takes each day are really necessary or if she can get all the nutrients she needs from her food? Chris tests out a new meal plan to see what difference changing what you eat makes to how you power through the day, and even how you sleep.

S1E1 • Food: Truth or Scare • 2016 • Health