Depending what you read, mobile phones already give us headaches, repetitive stress injury, memory loss, poor sleep, and possibly even cancer.

And now it turns out, they also crush your spine.

A newly coined condition - ‘text neck’ - reveals that slumping over your mobile phone for hours on end heaps so much pressure on your spine, that we’re giving ourselves long-lasting back problems.

It might be easy to dismiss – can looking down occasionally really cause that much damage?

But then you look at the numbers – bending the head at a 60 degree angle puts adds 60lbs worth of pressure on the top of the spine. That’s more than four stone. Which is more than the average seven year old.

“The issue is that people don’t just let their neck hang forward, because it causes an immediate stretch and makes us change our head on neck position almost immediately. 

Is texting damaging your back?

Instead, people “prop” their elbows either on their tummy or wait, to pull the phone away from their bodies to get the focal distance they need it, then they poke their chin out to get the screen in front of the eyes,” explains Matt Todman, Clinic Director Six Physio.

“Poking out the chin is the problem. The head is heavy (approx 8kg) in relation to the muscles that support them so this position irritates and stretches the front portion of the cervical spinal discs in the neck and causes pain in traps and down the inside of your shoulder blades.”

The trouble is, however alarming that all sounds, it’s probably not alarming enough to make us leap away from our phones, we’re all addicted to them now.

Here are some ways you can be addicted but keep your spine safer…

- “Work on thoracic mobility and lift your chest,” says Todman. “When looking at the phone DON’T poke out your chin, keep it in the middle.”

- “Try holding your phone more in front of your face, though this can be tiring so use the arm of a chair or wedge an elbow into your tummy.”

- When using your phone adjust your position regularly - you should not be sustaining one set position for more than 15 minutes.

- “Try paying attention to the crown of your head at the same time as looking at your phone,”  advises Alexander Technique Specialist and ambassador to Deep Heat Muscle Rescue James Crow.

“Imagine the space between the two increasing, like magnets gently pushing away from each other instead of pulling into each other. This can really help your head posture.

- “Give your neck a rest every now and again by pulling up and looking around you.

People-watching, spotting their bad posture habits as they use their mobiles, can be a fun alternative.

You'll soon notice everyone else's bad habits, so you're less likely to do it yourself.”

Photo credit: Surgical Technology International