In the medial prefrontal cortex, loneliness is associated with a reduced representational similarity between the self and others. Feeling socially disconnected may be mirrored by a self-representation of being a "loner."
Neuroimaging reveals several differences in the brains of lonely people, specifically in the default network. Researchers found greater gray matter density and stronger connectivity in the default networks of lonely people.
A new study reveals an increase in students reporting symptoms of depression, anxiety, and loneliness. 83% of students surveyed reported their mental health had impacted their academic performance within the past month.
Those who report feeling consistently lonely and socially isolated between the ages of 45 and 64 have an increased risk of developing dementia later in life. However, the risk can be reversed if people embark on activities to expand their social lives and become less lonely.