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Can Yoga Reduce Blood Pressure?

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Yoga is a mind-body therapy based on movement, and it may provide a range of health benefits. Can it lower high blood pressure?

Research suggests that yoga can help alleviate specific symptoms, reduce inflammation, and improve a person's quality of life.

Yoga is a physical, spiritual, and mental discipline that began in India. It combines gentle movements with controlled, focused breathing and meditation.

In recent decades, the practice has become popular in the United States. Meanwhile, researchers have been working to uncover how yoga benefits human health.

In this article, we describe scientific investigations into the effects of yoga on high blood pressure.

Effects on blood pressure

Below, we summarize research into yoga's potential to reduce blood pressure.

Iyengar yoga improves high blood pressure

In 2011, Evidence-based Complementary and Alternative Medicine published research into the effects of Iyengar yoga on high blood pressure.

In the study, participants had slightly or mildly elevated blood pressure and were not receiving treatment.

Researchers divided them into two groups.

One performed Iyengar exercises over a 12-week period. These participants had little or no prior experience with yoga. The other group made personalized dietary adjustments.

After comparing the groups' results, the authors concluded that "Twelve weeks of Iyengar yoga produces clinically meaningful improvements in 24-hour systolic blood pressure and diastolic blood pressure."

The term systolic refers to the pressure of blood in the vessels when the heart beats. Diastolic refers to the pressure between beats. If a person has a blood pressure reading of, for example, 120/80 millimeters of mercury (mm Hg), systolic pressure is the first number, and diastolic pressure is the second.

It is important to note that the study above included only 57 participants. Confirming these findings will require further research.

Impact of yoga and healthful lifestyle

In 2016, researchers published results of the Lifestyle Modification and Blood Pressure Study (LIMBS).

This was one of only a few randomized controlled trials to investigate whether yoga can reduce high blood pressure. Specifically, the study compared the effects of practicing Hatha yoga for 12 weeks with more standard approaches.

Researchers randomly divided the participants into the following groups:

Yoga: This group contained 43 people. They attended two 90-minute yoga classes each week for 12 weeks. Gradually, they also began to practice yoga at home, guided by DVD instruction.

Healthful living: This group contained 48 people. They followed a health education and walking program. It included classes in nutrition and motivational guidance, and participants gradually worked up to 180 minutes of walking per week.

Yoga and healthful living: This group contained 46 people. They attended the yoga classes and the health education and walking program, but they could opt out of home yoga.

The researchers concluded that all three approaches reduced resting blood pressure. In every participant, readings were lower at 12 weeks and 24 weeks than they had been at the start of the study.

At 12 weeks, the reduction in blood pressure was more significant in the group that did only yoga, compared to the group that followed the education and walking program.

Overall, drops in blood pressure were small, but even small reductions can benefit health.

The authors note that if systolic blood pressure drops by 2 mm Hg, this can reduce the risk of dying from heart disease by 7 percent and reduce the risk of dying from a stroke by 10 percent.

Can yoga delay drug treatment?

In 2013, the American Heart Association (AHA) released a statement, calling for more research into whether lifestyle measures, such as yoga, can delay the need for drug-based treatment of high blood pressure.

The AHA published a review of trials, concluding that yoga may lower blood pressure by modest amounts.

However, the AHA acknowledged that the studies had been small-scale and that it is not yet possible to recommend yoga as a treatment for high blood pressure.

Still, the organization noted, yoga is unlikely to harm people with high blood pressure.

Yoga, exercise, and salt reduction

A study from 2009 explored the effects of yoga, exercise, and dietary salt reduction in 102 participants with slightly elevated or high blood pressure.

The participants engaged in one of the following activities for a period of 8 weeks:

  • brisk walking for 50–60 minutes, 4 days per week
  • reducing salt intake by at least 50 percent
  • practicing yoga for 30–45 minutes at least 5 days per week

A fourth group, the control group, made no changes. All of the participants who engaged in lifestyle changes experienced a reduction in blood pressure, compared with the control group.

The results suggest that brisk walking, reducing salt intake, and practicing yoga can each benefit people with high blood pressure.

How does it work?

Some researchers have investigated the ways in which yoga can impact the body's functions and improve health.

Yoga as exercise

Research indicates that physical activity can lower blood pressure.

Yoga could benefit people in this way, but not as a vigorous form of exercise.

Authors of a 2016 review described yoga as a "light-intensity" form of calorie-burning aerobic exercise. However, they noted that some poses are more strenuous, such as Surya Namaskar, or Sun Salutation.

The researchers concluded that practicing strenuous poses for at least 10 minutes three times a day could count as moderate or vigorous activity.

Because yoga encourages strength and flexibility, it may be an attractive option for people who want to get into the habit of exercising.

Stress reduction

The meditation element of yoga may also benefit the body. Some research indicates that meditation can help reduce blood pressure, though not always by a significant amount.

A 2013 review found some evidence to that meditation can lower high blood pressure, but the results were not significant enough to strongly recommend meditation for this purpose.

In 2011, one team of researchers suggested that yoga, meditation, and music might sensitize receptors in heart and lung arteries and decrease activity in the sympathetic nervous system, which stimulates the body's fight-or-flight response.

In May 2018, a group of researchers announced that they had identified 1,771 genes that appear to react to the relaxation response in yoga and similar activities.

These genes are linked to the immune, metabolic, and cardiovascular systems, among others.

These findings provide the first insights into how yoga can relax the body and potentially lower blood pressure.

Yoga poses for blood pressure

Yoga experts recommend certain poses for reducing blood pressure.

Here are some suggestions:

In yoga, all movements are slow. A person should never push their body to do a pose.

It is best to start doing yoga with a qualified instructor, to ensure that you are doing it correctly and safely.

Yoga mats and instructional videos are available for purchase online.

Other ways to manage blood pressure

The AHA recommend lowering blood pressure by exercising, consuming less salt, and reducing stress.

Other helpful measures include:

  • quitting or not taking up smoking
  • keeping a healthful weight
  • limiting alcohol intake

People with high blood pressure should not stop taking their medications to follow an alternative or complementary therapy.

It is important to follow the doctor's instructions and discuss any changes with a health professional.

Other health benefits of yoga

Results of small studies suggest that yoga may modestly reduce high blood pressure. This can help to lower the risk of heart problems, chronic kidney disease, and strokes.

Yoga and other meditation practices may also reduce:

  • anxiety
  • depression
  • stress
  • obesity-related health problems

Confirming the benefits will require more research, but anecdotal evidence suggests that yoga is not harmful for people with these conditions.

Takeaway

While it seems that yoga may help lower high blood pressure, most relevant studies have been small and not standardized, making it harder to compare results and draw conclusions.

Whether or not yoga lowers blood pressure, it is likely to be a safe choice when practiced with professional guidance.

Yoga is likely a healthful addition to a treatment plan. However, it is important to remember that yoga may be a complementary therapy. It is not a replacement for treatments and medications that a healthcare professional recommends.

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