I teach how your body works.

And how it can move and feel better!

Anatomy Trainings

I teach anatomy, physiology for yoga and movement teachers around the world...

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Private Sessions

Private sessions can include yoga or Feldenkrais Functional Integration...

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Blog Posts

Read about yoga, anatomy, physiology and the science of moving better...

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Upcoming workshops

Yoga Anatomy Intensive Course

Kusagae Yoga, Fukuoka, Japan

November 15-17, 12:30-5:30 pm

20 Hour Yoga Physiology Course

Tokyo Yoga, Tokyo, Japan

November 22-25,  12:30-5:30 pm

Advanced Anatomy Training for Yoga Teachers

Kaia Yoga, Westport, CT

January 4-5

Functional Anatomy and Physiology for Yoga

Now Yoga NY, New York, NY

Mondays and Tuesdays, January 6-March 10, 2-5 pm

Recent blog posts

Does deep breathing increase blood oxygenation?

I’ve often heard yoga teachers say things like, “We only use a small percentage of our lungs when we're breathing normally,” or “We don't use our full lung capacity, and if we could breathe more deeply, we could bring more oxygen into the bloodstream.” But are those things true?  Well, it is true that if you’re breathing quietly, you don't use the full volume of your lungs.  Lung volumes Total...

How many calories do you burn practicing yoga?

Probably not as many as you think.  Does that really matter?  Maybe not as much as you think. Students occasionally ask me “How many calories do you burn practicing yoga?” I often assume that what’s underlying the question is another question, “Will I lose weight practicing yoga?” but that’s really a different question, which I’ll touch on later.  But because the word “calorie” is so bound up with the issue...

Scapulohumeral rhythm: what happens when you lift your arms overhead?

What happens when you lift your arms overhead? Lifting your arm is a pretty common movement—think shampooing your hair or reaching for a can on a high shelf. It’s also common in yoga practice, from the first movement of a sun salutation to downward facing dog and handstand. Unfortunately, there are some widespread misconceptions in the yoga world about what happens during this sequence of events. In this post, I’ll...

Pull ups and yoga: An important movement most yogis miss out on

Pull ups and yoga: Are you missing out? If you only practice yoga, you’re probably missing out on an important type of movement that can help you find more balanced strength and stability in your shoulders—upper body pulling exercises. While yoga helps develop upper body pressing strength--with poses like down dog, handstand and arm balances--it does little to build upper body pulling strength. Yet pulling movements are just as important in...

How does stretching make you more flexible?

How does stretching make you more flexible? Intuitively, it seems that it must have something to do with your muscles—that they must lengthen or that the tissue must become more pliable over time. Yet, as we’ve seen, the evidence doesn’t bear that out. Stretching makes muscle tissue more pliable in the short term, but those changes don’t last. Muscles revert to their normal stiffness within minutes after a stretch. And...

Do yoga inversions help drain lymph?

Do yoga inversions help drain lymph? Basically, yes. In the same way that inversions, such as headstand and shoulder stand, help return blood to your heart, turning upside down can assist lymph drainage from your legs. However, it isn’t necessary to invert to keep lymph moving. Your body has other means to accomplish the same thing, even if you never turn yourself upside down. (For an explanation of how inversions affect...

Do yoga inversions reverse the flow of blood?

Do yoga inversions reverse the flow of blood? Although yoga teachers sometimes say this, the answer is no. The blood in your body only flows in one direction. From your heart’s left ventricle, it’s pumped through a network of arteries to the capillary beds that surround the cells of your body. That’s where your cells take up oxygen and nutrients and your blood absorbs carbon dioxide. From your capillaries, de-oxygenated blood...

The glutes and hip pain in yoga

“Don’t contract your glutes.” I’ve heard this instruction many times from yoga teachers, especially during backbending poses, but it’s always puzzled me. The gluteus maximus – the large muscle of your buttocks -- is the prime mover in actions that require hip extension against gravity, such as climbing stairs or standing up from a squat. It’s normally active in backbends such as shalabhasana (locust), setu bandhasana (bridge) or urdhva dhanurasana...