Doesn't loneliness differ from man to man? When and how?

Demographic factors like age, job status, physical condition and social connectivity, etc. contribute to loneliness.

Young adults, mothers with young children, the elderly, and immigrants are mainly susceptible to loneliness.

Older adults are generally retired and live alone. They have lost friends and family members, and face medical or physical limitations that reduce their social activities. All these factors influence older adults' loneliness.

Some of the common causes of loneliness are: death of a close friend or family member, physical isolation, illness or disability, retirement, and working alone.