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SCORPIO (Oct 23–Nov 21): Some athletes think it’s unwise to have sex before a competition. They believe it diminishes the raw physical power they need to excel. For them, abstinence is crucial for victory. But scientific studies contradict this theory. There’s evidence that boinking increases testosterone levels for both men and women. Martial artist Ronda Rousey subscribes to this view. She says she has “as much sex as possible” before a match. Her approach must be working. She has won all but one of her professional fights, and Sports Illustrated calls her “the world’s most dominant athlete.” As you approach your equivalent of the “big game,” Scorpio, I suggest you consider Rousey’s strategy…