Why dieting doesn't usually work • 2013 • TED

58:47

Of all the wonders of the human body, there's one more mysterious than any other. Blood: five precious litres that keep us alive. Yet how much do we really know about this sticky red substance and its mysterious, life-giving force?

Health

5:02

When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation.

2014 • Health

9:15

Fewer children in the United States are getting vaccinated. That’s bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible, irrational decisions. Instead of doing that, let’s use science to understand why this is happening in the first place.

SciShow • Health

40:06

Buettner visits Singapore and shares his discoveries in the United States to find out creating a new Blue Zones in a rapidly changing world.

S1E4 • Live to 100: Secrets of the Blue Zones • 2023 • Health

59:15

At an extraordinary moment in the history of one of the world’s oldest and most controversial drugs, Horizon investigates the very latest medical and scientific research into the effects of cannabis on the brain and the body. Medicinal cannabis became legal in the UK on 1 November 2018, but it is still shrouded in controversy. A&E doctor Javid Abdelmoneim wants to find out whether it will help or harm patients. Javid meets the young epilepsy patient responsible for changing the law around medicinal cannabis in the UK and sees the remarkable effects it has on his condition. He visits a medicinal cannabis farm in Denmark to learn how a company known for growing the recreational drug are now producing medicinal cannabis to be exported all over Europe. He travels to Israel, to find out why they have been using cannabis as a medicine for over 20 years and meets the scientists studying the safety and effectiveness of cannabis in treating pain. And he meets the so-called godfather of cannabis, who at 88 years old is still an active research scientist and considered the world’s leading cannabis expert. In the UK Javid encounters the first British patient to be prescribed intoxicating herbal cannabis to treat her chronic condition. He meets psychiatrists at King’s College London who reveal their new study linking cannabis more strongly than ever to alarming mental health problems. And he takes part in a groundbreaking trial looking at the effects of the different chemicals in cannabis on the brain.

Horizon • 2019 • Health

59:05

Michael Mosley investigates the dramatic rise in e-cigarettes. They're everywhere these days, but what does the latest scientific research on them reveal? Michael reveals what e-cigarettes are really doing to your health. Are they really better for you than cigarettes? What is actually in them? Is passive vapour harmful? And can they really stop you from smoking? Michael meets some of the scientists around the world studying them, asks a group of volunteers to try to give up smoking regular cigarettes using them, and even takes up 'vaping' himself, smoking an e-cigarette every day for a month to see the effects on his own health - no easy task for such a committed non-smoker.

Horizon • 2016 • Health