According to Dr. Joan Vernikos, former NASA director of life sciences and the author of “Sitting Kills, Moving Heals,” it’s ideal to “change your posture every 15 to 20 minutes throughout the day.”


Stretch out your slouch

Healthy muscle function is the only way to support good posture and alleviate the pain caused by bad sitting practices. That’s why I recommend practicing specific yoga poses to reduce tension and help reset postural alignment. Poses that address hip, back and upper-body tension are especially helpful for counteracting the effects of sitting.

These are two good examples:

1. Warrior One is a basic standing yoga pose that lengthens the upper body while stretching hip flexors and stabilizing the low back. From standing, step back into a lunge but drop your back heel and point your toes out 45 degrees. Keep your back leg straight with your forward knee flexed above your ankle. Lift your arms overhead, shoulder-distance apart. Hold for three to five long, deep breaths. Repeat on the other side.

2. Kneeling lunge with reach-back twist stretches hip flexors while releasing chest, neck and upper-back tension. From a kneeling lunge with your left foot forward, place your right hand on your left thigh. Reach your left arm behind you with your forearm and palm turned up. Look back over your shoulder as you draw your right shoulder blade down, relaxing the muscles of your neck and chest. Hold for three to five long, deep breaths. Repeat on the other side. Note: The reach-back twist can be done sans lunge — simply from standing or sitting.

Remind yourself to be mindful

Mindfulness is paramount to sitting healthier, but it’s understandable that we disengage during sedentary activities, such as watching TV, reading or working at a desk. It’s helpful to set a timer to remind you to keep your sitting in check.

Technology — such as computers, tablets and smartphones — might be a big reason we’re in our seats so much, but it can also help.

There are some innovative posture-correcting apps, such as Posture Trainer, and wearable technology, such as Lumo Lift. I’m on the advisory board of Darma, a company creating the world’s first “smart” seat cushion to monitor your real-time posture, respiration and stress level and cue you via an app to apply all the principles I outlined above.

Copyright CNN 2015.