A workout shared is a workout whose enjoyment is doubled and its load is halved. Training with a partner shouldn't be reserved just for Valentine's but on Valentine's Day it takes special significance and creates even better feelings. Social neuroscience research shows that interaction between people and the apparent 'simplicity' of just doing things together helps people get on the same page as their brainwaves synchronize. Just for that it is worth scheduling some training time with your special other or even a good friend. But, there is also the physical and psychological benefits that are derived from exercise. The Valentine's Collection gives you some workouts designed for two.