Yoga

What is it?

Yoga is a mind-body practice that combines physical postures, breathing exercises, meditation, and ethical principles. Originating in ancient India, yoga is widely practiced today for its physical, mental, and spiritual benefits.

How does it work for medicinal purposes?

Yoga works by integrating physical movement with breath control and mindfulness. This combination enhances physical strength, flexibility, and balance while promoting mental clarity and emotional well-being. The practice stimulates the parasympathetic nervous system, reducing stress and improving overall health.

What are the active components that are important for its medicinal properties?

The key components of yoga that contribute to its health benefits include:

• Asanas (Postures): Physical exercises that improve strength, flexibility, and balance.
• Pranayama (Breathing Exercises): Techniques that regulate breath, enhance lung capacity, and calm the mind.
• Meditation: Practices that promote mindfulness, reduce stress, and enhance mental focus.
• Relaxation Techniques: Methods to relax the body and mind, reducing tension and stress.

What forms does it come in?

• Hatha Yoga
• Vinyasa Yoga
• Ashtanga Yoga
• Iyengar Yoga
• Bikram Yoga
• Kundalini Yoga
• Restorative Yoga
• Yin Yoga

What if I have an imbalance or deficiency?

A lack of physical activity, chronic stress, and poor mental health can all be addressed through regular yoga practice. Yoga can help balance the body and mind, reducing symptoms of physical and mental health conditions.

When was it first used for medicinal purposes?

Yoga has been practiced for thousands of years, with its origins dating back to ancient India around 3000 BCE. It was traditionally used as a spiritual practice, and its health benefits have been recognized and utilized throughout history.

What does Yoga help with?

Yoga comes from the Ayurvedic tradition of India. It mixes slow movement, held poses, steady breathing and quiet focus. Most classes studied by researchers use a gentle, low-strain style.

Yoga is one of the best-studied natural practices, and the overall grade on file is A. But the proof is not the same for every use. So each use below carries its own grade and its own basis.

• Everyday stress and anxiety
  Strong evidence — many randomised human trials, in healthy people and in people with anxiety disorders; trial sizes not on file. Trials found lower anxiety scores after weeks of regular practice. Many people reported a sense of calm within a single class. Studies also measured lower stress hormones, which researchers see as one likely reason.
  Evidence grade A · Traditional tier T3
• Long-term lower back pain
  Strong evidence — consistent randomised human trials; yoga now appears in several mainstream clinical guidelines for back pain. Trials found less pain and better daily function with gentle yoga. The classes used slow stretching plus core and spine strengthening. The mindful part may ease the fear and worry that keep pain going, though that is the proposed reason, not proof.
  Evidence grade A · Traditional tier T3
• Tiredness and low quality of life during cancer care
  Strong evidence — randomised trials across several cancer types; one of the most studied add-on therapies in cancer care. Trials found less fatigue, better sleep and less anxiety. People also rated their overall quality of life higher, both during and after treatment. Yoga did not get in the way of standard cancer care in these trials.
  Evidence grade A · Traditional tier T3
• Trouble falling or staying asleep
  Good evidence — good randomised human trials, best documented in older adults, people having cancer treatment, and women in menopause. People in these trials fell asleep faster and slept longer. Many woke up feeling more rested. Calm breathing and relaxation poses before bed are the proposed reason, which is mechanism thinking rather than proof.
  Evidence grade B · Traditional tier T3
• Depression and low mood
  Good evidence — clinical trials in people showing lower depression scores. Trials found real drops in depression scores with regular practice. Yoga was tested both on its own and next to usual care, and helped in both settings. Some studies measured more GABA and serotonin, two mood-linked brain chemicals, plus lower inflammation markers; that is lab measurement, not proof of the mood change itself.
  Evidence grade B · Traditional tier T3
• High blood pressure
  Good evidence — randomised human trials in people with high or borderline blood pressure. Trials found small but steady drops in both the top and bottom numbers. The change was clearest in people who already had raised readings. Proposed reasons include calmer nerve signals, more flexible arteries and less cortisol; these are mechanism findings.
  Evidence grade B · Traditional tier T3
• High blood sugar in type 2 diabetes
  Good evidence — human trials in people with type 2 diabetes or prediabetes. Studies found lower fasting blood sugar and lower HbA1c, a three-month sugar average. Insulin sensitivity also improved. Both the movement itself and the drop in stress may play a part, since long-term stress is known to upset blood sugar control.
  Evidence grade B · Traditional tier T3
• Stiff joints, poor balance and low flexibility
  Good evidence — human studies running only a few weeks. Studies found better flexibility, balance and joint range within a few weeks. Over time, people reported less stiffness in day-to-day movement. Better balance has been linked with a lower risk of falls in older adults.
  Evidence grade B · Traditional tier T3
• PTSD and trauma recovery
  Early evidence — early human studies of trauma-sensitive yoga classes. Early studies found lower PTSD symptom scores with trauma-sensitive classes. The aim was to help people feel safe in their own body again. In these studies yoga sat alongside talk therapy, and some people who find talk therapy hard started here.
  Evidence grade C · Traditional tier T3

What Yoga has not been shown to do

• Yoga has not been shown to treat cancer itself; the trials measured fatigue, sleep, mood and quality of life.
• It has not been shown to replace blood pressure medicine, since the drops seen in trials were small.
• It has not been shown to replace insulin or diabetes tablets.
• In PTSD studies yoga was used with talk therapy, so it has not been shown to work in place of therapy.
• A single class was not shown to give lasting change; the trials measured regular practice over weeks.

How to read this:

Each grade covers one use, not the whole practice. A means several trials in people agree. B means at least one good trial in people. C means small or early human studies. D means the human evidence is weak or mixed. Insufficient means no human study on file. This page lists options and what studies found. It is not medical advice, and it does not say yoga will work for you. Talk with your doctor before you change any treatment.

What can Yoga help prevent?

• Falls and fall-related injury in older adults: balance training through yoga reduces fall risk with consistent evidence from multiple trials
• Cardiovascular disease progression: regular practice supports healthier blood pressure, inflammatory markers, and cholesterol profiles
• Burnout and stress-related illness: sustained practice builds nervous system resilience and lowers chronic stress load

Which foods support yoga practice?

Yoga is not found in foods. However, a balanced diet rich in certain nutrients can support yoga practice and overall health, including:

• Proteins: Lean meats, beans, nuts.
• Carbohydrates: Whole grains, fruits, vegetables.
• Healthy Fats: Avocado, olive oil, fatty fish.
• Vitamins and Minerals: Leafy greens, dairy products, nuts, and seeds.

What are possible side effects?

Yoga is generally safe, but possible side effects include:

• Common (10-30%)
• Muscle soreness
• Fatigue
• Less Common (1-10%)
• Joint strain
• Mild injuries (e.g., sprains, strains)
• Rare (<1%)
• Serious injuries (e.g., fractures, ligament tears)
• Nerve damage (from improper practice or extreme postures)

What’s the recommended daily amount of yoga?

There is no specific "dose" for yoga, but it is generally recommended to practice yoga for at least 30 minutes to an hour, 3 to 5 times per week, to achieve significant health benefits.

How many days does it take to work?

Some benefits of yoga, such as reduced stress and improved mood, can be felt immediately after a single session. Long-term benefits, such as improved flexibility, strength, and overall health, may take several weeks to a few months of regular practice to become apparent.

What time of day is best to do yoga?

Yoga can be practiced at any time of day, depending on personal preference and schedule. Morning practice can help energize and set a positive tone for the day, while evening practice can aid in relaxation and improve sleep quality.

Is it best to practice yoga with or without food?

It is best to practice yoga on an empty stomach or after a light meal. Eating a heavy meal before practice can cause discomfort and affect performance. Hydration is also important, so drinking water before and after practice is recommended.