Biofeedback devices typically weigh only a couple of ounces and look something like an iPod. Pressing your thumb to sensors on the devices allows them to take your pulse and measure changes in your heart rate. The devices then use audible cues, flashing lights and graphics to guide you to breathe in a way that has a calming effect.
Dr. Rosen prefers using the emWave brand of biofeedback devices, which he says helps his nervous patients relax before operations. While he’s used he device successfully on people of all ages, children take to it especially quickly, treating it like a video game. Dr. Rosen said they get a kick out of watching the colors change as their breathing slows.
“I teach them really simple little breathing techniques, and we work on synchronizing their breathing with their heartbeat,” he said. “When they see the green light show up on the meter, that shows them that they’re doing it effectively. And when they need work, it’s at red. You can teach them how to control their breathing in a way that positively affects their heart rate variability. And not only do they feel more relaxed, but the body’s physiology changes. We can measure hormone levels that show that the body is in a less stressed state.”
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