Yoga has been practiced for more than 5,000 years, and currently, close to 11 million Americans are enjoying its health benefits. Yoga can hardly be called a trend. Most Westernized yoga classes focus on learning physical poses, which are called asanas. They also usually include some form of breathing technique. and possibly a meditation technique as well. Some yoga classes are designed purely for relaxation. But there are styles of yoga that teach you how to move your body in new ways. Choosing one of these styles offers the greatest health benefits by enabling you to develop your flexibility, strength, and balance.

The term “power yoga” came into common usage in the mid 1990s, when several yoga teachers were looking for a way to make Ashtanga yoga more accessible to western students. Unlike Ashtanga, power yoga does not follow a set series of poses. Therefore, any power yoga class can vary widely from the next. What they have in common is an emphasis on strength and flexibility. The advent of power yoga heralded yoga’s current popularity, as people began to see yoga as a way to work out.

When some people think of yoga, they imagine having to stretch like a gymnast. That makes them worry that they’re too old, unfit, or “tight” to do yoga. The truth is you’re never too old to improve flexibility. The series of yoga poses called asanas work by safely stretching your muscles. This may release the lactic acid that builds up with muscle use, which may cause stiffness, tension, pain, and fatigue. In addition, yoga increases the range of motion in joints. It may also increase lubrication in the joints. The outcome is a sense of ease and fluidity throughout your body. Yoga stretches not only your muscles but all of the soft tissues of your body. That includes ligaments, tendons, and the fascia sheath that surrounds your muscles. And no matter your level of yoga, you most likely will see benefits in a very short period of time. In one study, participants had up to 35% improvement in flexibility after only eight weeks of yoga. The greatest gains were in shoulder and trunk flexibility.

Some studies have suggested that yoga may have a positive effect on learning and memory. Other researchers have been studying whether yoga can slow the aging process, increase a person’s sense of self-acceptance, or improve energy levels. Some potential benefits of yoga may be hard to study scientifically. For instance, yoga has been said to increase spiritual awareness. Nevertheless, there is an abundance of anecdotal claims for what yoga can do. Go to any yoga studio and listen to students after class. Some will even tell you that yoga can help improve marriages and relationships at work.