Dr. Rajiv Grover is a plastic surgeon who recently explained to The Telegraph that there are actual reasons why a camera phone adds seven years to your face when you take a selfie. Both the phone and the way it's held contribute to people being unsatisfied with the results of their photos, and bad selfies have even increased the number of patients seeking consultations from him for plastic surgery.
Despite advancements in phone-camera quality, Dr. Grover notes that these cameras are less-than-optimal for capturing your visage at close range:
A phone’s 28mm camera lens does exactly what time does to your face, enlarging the front of your face so that it looks bigger, as well as amplifying the features that get larger as you age. Add to that the fact that you tend to look down at your phone, which makes the skin on your neck and jowls look saggy.