New York City is flush with fitness classes, from spin to yoga to CrossFit. But these specialty workouts can be expensive – and popping into a new one you’ve never tried before can be a bit daunting.

Exercise is famously healthy, but you may get an extra health benefit by doing a variety of workouts. Cardiologist reveals her favorite trendy exercise class.

It's not a longevity hack — it's a boring truth underscored by new research: Staying motivated is the key to exercising for a ...