I was reading this story about these people who suffered from brain injuries, and then their behavior changed kind of drastically afterward, and I just said to myself, 'There's no way that that can possibly be true.' Sam Kean afterwardbehaviorbrain share on social
The mutated Marfan gene creates a defective version of fibrillin, a protein that provides structural support for soft tissues like blood vessels. Marfan victims often die young, in fact, after their aortas grow threadbare and rupture. Sam Kean aortabloodcreate share on social
What I find fascinating is the idea that we all have a physical brain, but we also have this mental part, and we have to figure out how they work together. Sam Kean brainfascinatefigure Change image and share on social
Although it's the hub of the nervous system and the ultimate terminus of every nerve, the brain itself lacks enervation and therefore cannot feel pain. Sam Kean brainenervationfeel Change image and share on social
Lithium makes a fine battery because it's a scarily reactive metal. Pure lithium ignites on contact if it touches water - a flake of it would sizzle and fry on the water-rich cells of your skin. Sam Kean batterycellcontact Change image and share on social
Geneticists in the early 1900s believed that nature - in an effort to avoid wasting precious space within chromosomes - would pack as many genes into each chromosome as possible. Sam Kean 1900savoidbelieve Change image and share on social
There are a few elements - especially platinum and palladium - that have the amazing ability to absorb up to 900 times their own volume in hydrogen gas. To get a sense of the scale there, that's roughly equivalent to a 250-pound man swallowing something the size of a dozen African bull elephants and not gaining an inch on his waistline. Sam Kean abilityabsorbafrican share on social
The idea of critical windows extends beyond just vision, of course: almost every system in the brain has a critical window when it needs to experience certain stimuli, or it won't get wired up properly. The most obvious example is language: if you don't learn a language early on, it's nigh impossible to become truly fluent. Sam Kean braincriticalearly share on social
We human beings are humane in part because we can look beyond our biology. Sam Kean beingbiologyhuman Change image and share on social
The grand saga of how humans spread across the globe will need some amendments and annotations - rendezvous here, elopements there, and the commingling of genes most everywhere. Sam Kean amendmentannotationcommingle Change image and share on social