Tech neck is claimed to be brought on by regular use of smartphones and tablets. Looking down at devices up to 150 times a day has led to something dubbed tech-neck – with people between 18 and 39 being most affected. It seems to be something to do with saggy skin and a distinct crease around the neck caused by all that looking down, according to the Telegraph website. Although, everyone’s skin is affected by ageing neck-tech is reportedly being seen in much…