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As a supporting aside, sleep requires that blood vessels constrict a bit, and that's what cold does to a persons body, restrict blood flow to the surface. It ma
by apotheothesomai 9y ago
As a supporting aside, sleep requires that blood vessels constrict a bit, and that's what cold does to a persons body, restrict blood flow to the surface. It may go deeper than that, but I lack the knowledge to assert as much.