Showing results for "Matthew Perry" in Science

Sleep is one of the most important aspects of our life, health and longevity and yet it is increasingly neglected in 21st century society, with devastating consequences: every major disease in the developed world - Alzheimer's, cancer, obesity, diabetes - has very strong causal links to deficient sleep. Until very recently, science had no answer to the question of why we sleep, or what good it served, or why its absence is so damaging to our health. Compared to the other basic drives in life - eating, drinking and reproducing - the purpose of sleep remained elusive.

Sand, iron, salt, oil, copper and lithium. The struggle for these tiny, magical materials has razed empires, demolished civilizations, fed our greed and our ingenuity for thousands of years. But the story is not over. We are often told we now live in a weightless world of information but in fact we dug more stuff out of the earth in 2017 than in all of human history before 1950. And it's getting worse. To make one bar of gold, we now have to dig 5,000 tons of earth. For every tonne of fossil fuels, we extract six tonnes of other materials - from sand to stone to wood to metal.