The use of social media technologies in the workplace is proliferating at an incredible pace. However, recent research reports that our inability to cope with the slew of social media communications is creating mental health problems, hampering productivity, generating stress, and lowering morale. This paper investigates how three aspects of cognitive control (i.e. fear of missing out, internet cognitive failure, and deficient self-regulation) affect communication and information overload. We test the model by collecting data from 129 students from an US and an Irish university. Partial Least Squares (PLS) techniques were used to test the model. The findings suggest that (1) communication overload is explained by fear of missing out, Internet cognitive failure, and deficient self-regulation, whereas (2) information overload is explained by only Internet cognitive failure and deficient self-regulation.