Loneliness refers to the subjective

experience of feeling emotionally disconnected, even when surrounded by others,

whereas social isolation refers to an objective lack of social contact or

interaction.

Social

isolation is a subjective feeling of disconnection, while loneliness is an

objective measure of how many social contacts a person has.

Loneliness

only affects older adults, while social isolation is more common in teenagers.

Loneliness

and social isolation are interchangeable terms that both refer to being

physically alone.

Social

isolation is a temporary emotional state, while loneliness is a permanent

condition.