With a tiny clump of cells from a man's scalp, scientists have grown new human hair in the laboratory.
But don't get too excited. A magic cure for baldness isn't around the corner. The experimental approach is quite limited and years from reaching the clinic — for many reasons.
The scientists have grown the hair only on a tiny patch of human skin grafted onto the back of a mouse. And as wispy locks go, the strands are pretty pathetic. Some hairs were white, and some didn't even make their way out of the skin.
If you've flown across Nebraska, Kansas or western Texas on a clear day, you've seen them: geometrically arranged circles of green and brown on the landscape, typically half a mile in diameter. They're the result of pivot irrigation, in which long pipes-on-wheels rotate slowly around a central point, spreading water across cornfields.
Yet most of those fields are doomed. The water that nourishes them eventually will run low.
As we all know, Americans are living longer. Women especially.
But here's what you may not know: French, German, Swedish, Italian, Japanese, British, Dutch and Canadian women are living longer too, but their lives are getting longer faster than ours. Take a look at this from the National Academy of Sciences.