Wow, yoga is a $27 billion a year business. 

Hatha, the most common kind of yoga taught in the US, focused on poses called “asanas” and breathing techniques. Previous research has demonstrated that these movements and the focus on breathing can reduce stress and anxiety, and that lower stress may have contributed to the better results, according to the study.

If you’re looking to get into yoga to sharpen those mental skills, finding classes or videos to get you started isn’t difficult in the US—Americans spend $27 billion a year on yoga products and there were 20.4 million people practicing yoga in the US in 2012.

Older adults were in the minority as of 2008, and experts advise that if you’re going to start yoga at an older age it isimportant to be cautious. Start with basic poses and breathing exercises, and make sure to modify the poses to avoid putting undue strain on your neck and head.