While social media and smart devices have made life easier, they also cause health and social problems Pix for representational purpose only. PETALING JAYA: Social media, along with its smart devices, has been both a boon and a bane. While they have made it that much easier to get a message across to a wider-than-ever audience, they have also brought a never-before-seen impact on mental and physical well-being. For instance, a recent report in Singapore showed that 40% of people now exhibit a deficiency in Vitamin D, thanks to a lack of exposure to the sun. Overuse of smart devices leads to headaches, sleep disturbance, neck and shoulder pain and eye problems.