I like yoga
Yoga is pretty interesting. It is a combination of mental, physical and spiritual practices that originated in India.
I use yoga to help my concentration 
Yeah it has many purposes for different people. The origins have been speculated to originate from the sixth or fifth century BC>
Really? it has a very long history
It's only been since the 1980s that it has become popular as a physical exercise across the Western world.
Was yoga a religious practice?
Yoga
Yoga (; ; ) is a group of physical, mental, and spiritual practices or disciplines which originated in ancient India. Yoga is one of the six orthodox schools of Hindu philosophical traditions. There is a broad variety of yoga schools, practices, and goals in Hinduism, Buddhism, and Jainism. The term "yoga" in the Western world often denotes a modern form of Hatha yoga, yoga as exercise, consisting largely of the postures called asanas.
The origins of yoga have been speculated to date back
yoga, but many others exist.
Yoga is a group of physical, mental, and spiritual practices which originated in modern-day India before 500 BCE. The ultimate goals of yoga are spiritual, and yoga practice generally involves physically assuming and moving through codified asanas or body positions. Yoga physiology describes a system of interconnected bodies, having different but interrelated physical and spiritual properties. The concept of energy flow through corporal channels reappears in other somatic forms, including contact improvisation and Qigong.
Qigong and tai chi are traditional