Sexual health: Sex is not just for the sake of.  Albert and Mary Zarlengo of Denver, Colo., both 61, alwayscounted their sex life as one of the pluses of their marriage. Then came Albert heart attack and bypass surgery. Another pair of lovers, ofinducing fear of another attack, you give up sex. This is even worse. Albert, lawyerwho study was conducted in the early 50’s, when the attack occurred,...