I suppose every seasoned artist knows this, but it always comes as a surprise to my new students when I say, “Watch your posture and remember to breathe”.

Dream, 8″ x 8″ ink on paper
“And what does breathing and standing straight have to do with painting?” they ask. “A whole lot more than you might think,” I say. Painting is about being in the flow, finding a groove and letting the work manifest itself. It’s a place where our worries, our self-consciousness and our self-deprecation need to be set aside to leave room for unedited self-expression. Our bodies tend to carry all of our worries and negative emotions. Our muscles are tensed, our backs are slouched forward and we hold our breath too often, especially when concentration is required. All those can greatly affect the flow of your paintbrush and keep you stuck in an ineffective state of mind.
Breathing steadily and peacefully while painting helps you relax and bring your mind into a state of presence. It allows you to connect with your work, to see it better and to respond to it as it evolves. A painting isn’t something you can entirely plan ahead. You can make a few initial decisions, but after that, every brush stroke is a decision that is made in relation to what’s already on the canvas. So to make all these little decisions, you have to be present in every moment.

Pensive, 8″ x 8″ ink on paper
Painting is as much a physical act as it is an intellectual process. One thing is abundantly clear: whatever you do with your body while you paint affects your intellectual process. Over the years I’ve noticed that whenever I have bad posture while painting, my mind goes to a place of impatience. I start rushing the work so I can get out of that uncomfortable position. Good posture, which is not the same as restful posture, is primordial to a sustained painting practice. If you want to be able to paint for hours on end, you need to learn to stand or sit the right way. Painting is an active state. You shouldn’t let your body be too comfortable. Your body needs to be engaged in the process. Personally, I paint standing up. This has a few advantages: it forces me to be physically engaged, it helps me keep a better posture and it saves me from getting lazy.
Every time I’ve tried painting from a sitting position, (usually because I’m tired), it didn’t work for me. The simple truth is that I need to have my canvas standing straight up in front of me to avoid distortions of the image. I also need to be able to step away from the canvas frequently so I can get a complete view of the image. It’s so incredibly tempting for most of us to focus on one area of the canvas, forgetting the big picture. Painting sitting down can only work for really small formats where you have an easy overview of your work.
Second, I find that sitting induces a state of laziness that shows in the work. Although you never want to be in a rush to finish your work, you do want to keep yourself in an active enough state that motivates you to make all those small decisions that a painting requires.

Breathe, 8″ x 8″ ink on paper
And finally, sitting down is conducive to bad posture. If you are going to choose to paint sitting down, you need to be very mindful of what you do with your body and with your breath. It’s easy to slouch while sitting, but most of us don’t notice we are doing it. And poor posture in any position is conducive to poor breathing.
The art of manliness, in their blog titled The Ultimate Guide to Posture goes through the art of good posture very thoroughly. They talk about the benefits of good posture, and teach us how to achieve it while standing or sitting. And they provide corrective exercises to counter years of bad posture.
My advice? Take their advice: straighten up, breathe, and paint!