Is your phone giving you swiper’s thumb?

Take a look at your thumbs. Does one seem bigger to you than the other?

Not to scare you, but in a worrying sign of digitally induced evolution, new UK research claims the thumb you use to swipe your phone can become as much as 15 percent bigger than your other.

Cue you frantically switching hands to use your phone.

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According to the report by phone provider O2, those aged between 18 and 34 noticed the most changes.

And with people spending two hours a day on average using their phones, it’s no wonder it’s taking a toll on our bodies. (Seriously, just google “smartphone pinky” and “text neck”.)

“Smartphones have become an extension of ourselves - it's difficult to tell where our hands stop and the handset starts," said O2 Marketing and consumer director, Nina Bibby. "It seems our bodies are subtly changing to adapt to the fact mobiles are increasingly a part of our lives.”

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So what’s the rule of thumb to make sure you don’t end up with one Hulk hand?

Try sending a voice message instead of typing one out, or switch hands to give your normal hand a break.