But it isn't about over-the-moon, happy, young love; it's about love when the marriage is no longer easy, when every move the couple makes is haunted by a betrayal. Life Drawing is Robin Black's ...

is also associated with endogamy. Another study published in the journal Nature reveals that consanguineous marriage increases the risk of spontaneous abortion, stillbirths, neonatal mortality ...

"There is marriage endogamy and exogamy -- within and without," says Tahir Andrabi, a professor of economics at Pomona College in California. "Think of clans living together for a long time ...