The high frequency of cell phone use can have negative effects on our stress levels. The constant ringing, vibrating alerts, and reminders can put a cell phone user on edge. In a study conducted at the University of Gothenburg, Sweden, researchers examined if there is a direct link between the psychosocial aspects of cell phone use and mental health symptoms in young adults. The participants of the study included 20 to 24 year olds who responded to a questionnaire, in addition to a one-year follow-up. Researchers found high mobile phone use was associated with stress and sleep disturbances for women, whereas high mobile phone use was associated with sleep disturbances and symptoms of depression in men. Overall, excessive cell phone use can be a risk factor for mental health issues in young adults.