A paradox of the modern world is represented by the increasing rate of comorbidities, although the life expectancy is increasing worldwide, the number of disease-free years is not improving consequently. Physical comorbidities are often overlooked in people with severe mental disorders, although this problem needs to be adequately managed since it is associated with a worse quality of life and a poorer personal and social functioning. In this paper, we aim to: 1) carry out a narrative review of the recent literature in order to provide an update on the prevalence and incidence of the most frequent comorbid physical disorders in people with severe mental disorders; 2) highlight the most important difficulties in managing comorbidities in people with severe mental disorders in ordinary clinical care; 3) discuss possible solutions to overcome those difficulties, particularly through the role of education and scientific associations.