Human: I've been hearing a lot about the new fad of yoga. What is yoga, and does it really help you lose weight? Assistant: 
Yoga has been around for thousands of years and involves physical poses and breathing exercises that focus on improving flexibility, strength, balance, and relaxation. It's believed to be beneficial for overall health by helping reduce stress, improve concentration, and boost energy levels. Some research has shown that yoga can also aid in weight loss by increasing metabolism and reducing fat stores.