1. Mental Health Impact: Loneliness and social isolation increase the risk of depression, anxiety, and other mental health disorders.

2. Physical Health Consequences: These conditions are linked to cardiovascular problems, weakened immune systems, and a shorter lifespan.

3. Cognitive Decline: Prolonged loneliness can accelerate cognitive decline and increase the risk of Alzheimer's and dementia.

4. Behavioural Changes: Loneliness may lead to unhealthy behaviours such as substance abuse and overeating.

5. Quality of Life: Overall, loneliness diminishes quality of life by fostering feelings of purposelessness and emptiness.