I'M IN BIG TROUBLE The rest of you are probably in the clear. Studies show that regular sex (with all due precautions taken) provides a host of surprising health benefits. Six Reasons to Have Sex Every Week By Temma Ehrenfeld Sex is good for adults. Indulging on a regular basis—at least once a week—is even better. Research links sex (with all safer-sex precautions taken) to an astonishing array of physiological benefits, from longevity to pain relief. Many studies don't address whether the health bonus comes from the act itself or from the corresponding emotional intimacy, but the bottom line is that getting physical has some great side effects—especially for women. Here are six ways that sex boosts your health: 1. It Fights Colds and Flu. Sexual intercourse once or twice a week raises the body's level of the immune-boosting antibody immunoglobin A by a third, according to research at Wilkes University in Pennsylvania. 2. It's a Beauty Treatment. In a study at the Royal...