Here, I don't know as much, except what I've read from Henry, what my friends have heard about their partners.
Some people can't stand the sunlight. Is it their brains, their nerve endings? I haven't read the research--any of it--but the sun can give them migraines. Excruciating. So they seek a way to avoid the sun, to live and work in darkness.
It's a smaller group. And they have been able to get some research grants. Maybe that isn't it. Researchers have been able to get grants to study them--people who want to find out more about brain chemistry or the physiological effects of living with such low doses of sunlight. Vitamin D companies, too.
But I falter. I don't really want to talk about Henry right now.