Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.
Why do we sleep? We spend a third of our lives in slumber, but science has yet to determine exactly why we have do it. Here’s a look at how sleep works, why we’re not getting enough sleep, what happens if you DON’T sleep, and an idea about where sleep came from in the first place.
2015 • Health
Drinking alcohol on a cold day warms you up. Eating grilled meat can increase your risk of cancer. Mosquitoes prefer blondes… ah, women. We've all heard the claims, but are they true? From Winnipeg to Florida, from New York City to Vancouver, B.C, molecular biologist Dr. Jennifer Gardy goes in search of the answers. It's a journey through seldom-seen research that forces Dr. Gardy to become a real-life guinea pig to test these claims and discover, once and for all, whether they're science fact or science fiction. The surprising results are revealed in Myth or Science. , results that could change your life. Most of us just accept these myths as fact. But it is surprising to discover which are true and which aren't. It's not what you expect. And the answers can make a major difference to your daily life, and your health.
Do we live in the "real world" or is it all in our mind? Our perception of reality is controlled by society. Thanks to "the optimism bias", we make unrealistic assessments about our own reality. Human senses capture only a small part of nature.
From the detection of gravitational waves generated in space over a billion years ago, to discoveries in genetics here on Earth, we've collected the most compelling science breakthroughs and advances of 2016. Thanks to magnificent, hard-working scientists and researchers around the world, science keeps marching ever forward. And this year saw some discoveries that are absolutely brimming with the promise of greater discoveries, breakthroughs and quality of life in the future.
2016 • Science
Dame Sally Davies talks to Brian Cox about her interest in antibiotic resistance and admiration of Alexander Fleming and Howard Florey for their development of penicillin.