But do not panic yet.
One critic of the study says he "does not hold water," while another says the paper's hypothesis is only speculative.
CNN reached Shahar and Syers.
In their studies, Shahar and Cyers said that young people can develop small horns in the back of their skulls, possibly caused by moving the weight of our heads from the spine to the muscles at the back of our head and neck. This anatomical feature is called an external nail protrusion or an OEP.
Possible cause of this weight change? You probably knew him. Researchers hypothesize that this is due to the poor posture of people who twist their heads forward due to the use of the phone and the mobile device. For the first study, the two researchers have set a threshold of 5 millimeters to record EOP and consider it to be an extended EOP if it exceeds 1
These types of bone branching occur more frequently in the elderly and are considered a normal part of an aging process. However, Shahar and Cyers believe that advances in technology have changed the chronology of this type of bone growth.
Their second book explores a larger sample of 1200 X-rays for 18- to 86-year-olds. Thirty-three percent of the participants had bone growth, but it is odd enough that growth has decreased with age.
But not everyone agrees with researchers
would suggest more
"There is no information on the duration or frequency of the handheld device used in this study, so it is not possible to make any connection between the observations of the increased GPUs and use of handheld devices, "Dr. Mariana Kersh, assistant professor in the Department of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign and director of the Laboratory of Biomechanics of tissues, reported CNN. "There is definitely no reason and effect proven in this study
" The hypothesis on the role of using handheld devices is only speculative and is not based on any data presented in this study. "
The study did not have a control group, and the X-rays were taken by patients who had to visit a chiropractor with severe neck problems to take x-rays that may not offer the best picture of the general population  "Bone adaptation usually occurs in response to dynamic, repetitive movements that the body is not used to seeing," says Kersh. "The bone tension should be large enough (higher than usual) to trigger adaptation . With what we know about how bones react to mechanical stress, posture change itself is unlikely to cause bone changes, especially within a lifetime. which are different from the hypothetical loads proposed by Shahar and Sayer. "