Yoga is a mind and body practice with historical origins in ancient Indian philosophy. Like other meditative movement practices used for health purposes, various styles of yoga typically combine physical postures, breathing techniques, and meditation or relaxation. This fact sheet provides basic information about yoga, summarizes scientific research on effectiveness and safety, and suggests sources for additionalinformation.

Yoga in its full form combines physical postures, breathing exercises, meditation, and a distinct philosophy. There are numerous styles of yoga. Hatha yoga, commonly practiced in the United States and Europe, emphasizes postures, breathing exercises, and meditation. Hatha yoga styles include Ananda, Anusara, Ashtanga, Bikram, Iyengar, Kripalu, Kundalini, Viniyoga, andothers.

According to the 2007 National Health Interview Survey (NHIS), which included a comprehensive survey on the use of complementary health approaches by Americans, yoga is the sixth most commonly used complementary health practice among adults. More than 13 million adults practiced yoga in the previous year, and between the 2002 and 2007 NHIS, use of yoga among adults increased by 1 percent (or approximately 3 million people). The 2007 survey also found that more than 1.5 million children practiced yoga in the previousyear.

Many people who practice yoga do so to maintain their health and well-being, improve physical fitness, relieve stress, and enhance quality of life. In addition, they may be addressing specific health conditions, such as back pain, neck pain, arthritis, andanxiety.

Current research suggests that a carefully adapted set of yoga poses may reduce low-back pain and improve function. Other studies also suggest that practicing yoga (as well as other forms of regular exercise) might improve quality of life; reduce stress; lower heart rate and blood pressure; help relieve anxiety, depression, and insomnia; and improve overall physical fitness, strength, and flexibility. But some research suggests yoga may not improve asthma, and studies looking at yoga and arthritis have had mixedresults.

However, studies show that certain health conditions may not benefit fromyoga.

The video from NCCIHincludes:

There are many training programs for yoga teachers throughout the country. These programs range from a few days to more than 2 years. Standards for teacher training and certification differ depending on the style ofyoga.

There are organizations that register yoga teachers and training programs that have complied with a certain curriculum and educational standards. For example, one nonprofit group (the Yoga Alliance) requires at least 200 hours of training, with a specified number of hours in areas including techniques, teaching methodology, anatomy, physiology, and philosophy. Most yoga therapist training programs involve 500 hours or more. The International Association of Yoga Therapists is developing standards for yoga therapytraining.

This fact sheet has discussed research on yoga for conditions such as low-back pain, depression, stress, blood pressure, and insomnia. NCCIH is currently supporting research on how practicing yoga mayaffect:

Link:
Yoga for Health | NCCIH