Ah! It's about ghrelin. How strange to run into that immediately after getting my attention directed, once again, to the subject of first sleep, second sleep, which I originally captivated me in 2006. I had just read this other blog post of mine from the last day of 2006, "The two most useful health stories of the year." The second one was first sleep, second sleep, and the first one was ghrelin:
This one, explaining why your brain will be sharper if you stay a bit hungry. Maybe you've been trying to lose weight, but feeling that it's always important to stave off any feeling of hunger, for fear you might become weak or dim-witted. No! The opposite is true. We evolved to perform especially well when we feel the need for food. Sate yourself, and you'll be duller. Using this information, invent a better weight-loss diet.Now, that's the diet idea of staying hungry, not topping off breakfast with cookies or ice cream. But I like the freaky coincidence of 2 old topics popping up today in succession, like twin comets on a 6 year orbit.
Another funny thing is that, back when I first learned about first sleep, second sleep, I wrote a post at 2:27 a.m., talking about how I was between sleeps and worrying about raking my leaves before the snows came and ruined my lawn and imagining how if the lawn were ruined it would give me reason to hire people next year to "make it thickly plush, satisfyingly level, and shockingly green." And then there's Meade, in the first comment, at 3:32 a.m., also between sleeps, advising me about how to re-green the lawn. How nice that these days, when I'm caught between sleeps, Meade is here in the flesh.
The article I'd read back in 2006 said:
This time after the first sleep was praised as uniquely suited for sexual intimacy; rested couples have "more enjoyment" and "do it better," as one 16th-century French doctor wrote.The time after second sleep is also good for many things, including breakfast alone or with your true love, with or without dessert.