It is believed that smartphone and laptop use, could cause facial skin and muscle to lose its elasticity¹ as people spend an increasing amount of time sat with their heads bent².

据认为，经常使用智能手机和笔记本电脑会导致人的面部皮肤和肌肉失去弹性，因为人们低头坐着的时间越来越多。

It is now believed that the phenomenon, dubbed³ 'smartphone face' could be behind the growing trend for skin tightening⁴ treatments and chin implants⁵ which cost around £4,290.

According to statistics released by the American Society of Plastic Surgeons (ASPS) 'chinplants' are becoming the fastest growing cosmetic⁶（化妆品） surgery trend.

In 2011 its popularity grew more than breast augmentation（增加） , Botox and liposuction combined.

And a number of leading doctors believe that technology could be behind the growing trend, as poor posture⁷ can promote saggy⁸ jowls, double chins and 'marionette⁹ lines' - the creases¹⁰ from the corners of the mouth down the chin.

Confirming the condition, coined 'smartphone face', Dr Mervyn Patterson of the Woodford Medical group told the Evening Standard: 'If you sit for hours with your head bent slightly forward, staring at your iPhone or laptop screen, you may shorten the neck muscles and increase the gravitational（引力） pull on the jowl area, leading to a drooping¹¹ jawline.'

According to Ofcom's 2011 Communication Market Report 91 percent of adults use a mobile phone while 27 percent opt¹² for smartphones.

Meanwhile the Health and Safety Executive's Horizon Scanning paper reports that by 2015, 70-80 percent of workers could be, at least partially¹³, working remotely from a laptop.

ASPS president Dr Malcolm Roth also suggests that the use of video chat causes people to be more conscious of their appearance.

'The chin and jawline are among the first areas to show signs of ageing.

'As more people see themselves on video chat technology, they may notice that their jawline is not as sharp as they want.'