Your spouse can be your best exercise buddy. In a study of 3,075 people, researchers looked at marital status and activity levels. Married couples were more likely to be active than non-married individuals. If one spouse was active, the other spouse was also more likely to be active. In highly active men, their spouse was 3 times more likely to be active than women of inactive husbands. Having someone to exercise with can greatly improve your odds of being active for a lifetime. Source: Medicine & Science in Sports & Exercise (March 2006), 38:541-46.