We now know how it can ravage our body and brain
For the first time in history, we understand how isolation can ravage the body and brain. Now, what should we do about it?
An argument about work, life, and the modern calendar
Thanks to the ever-expanding modern work-week, opting to stay home with the kids is a different choice than it was twenty or thirty years ago.
Sheryl Sandberg and the folly of Davos-style feminism
Sheryl Sandberg and the folly of Davos-style feminism.
Solving an evolutionary mystery
By the cold logic of evolutionary science, post-menopausal women lack obvious utility. That they manage to attain old age requires explanation.
The scary consequences of the grayest generation.
We are having kids later than ever. We have no idea what we're getting into.
Time moves forward and fixes your body into place. An embryo divides; one cell becomes many. These cells divide again; a brain, arms, and fingernails are formed. You’re born; you grow; you look and behave in ways that scream you. How does this happen? Your genes tell your body what to do, using proteins as instructions. But what tells your genes what to do? Among other things, your epigenes do. These are biochemical tags that switch your DNA’s protein-making ability on and off without changing the DNA itself.
Haines Falls, N.Y.—Here are some things my children and I weren’t thinking about as we scampered outside our house in the Catskill Mountains during an afternoon lull in Tropical Storm Irene, elated by our suddenly torrential waterfalls, eager to pose in front of them for pictures to send to our friends: We weren’t thinking about orographic enhancement, because, of course, we had never heard of it. Orographic enhancement is the meteorological phenomenon that made Irene rain harder when it hit the mountains (wet air forced upward cools and condenses).