Loneliness tends to spread from person to person due to negative social interactions and other factors. In other words, when one person is lonely, this loneliness is likely to extend to friends or contacts of a lonely individual. By exacerbating it, people tend to further isolate people who are lonely because we have evolved to avoid the threat of our social cohesion.
From a survey of studies dealing with different types of senior loneliness interventions, it was found that the most effective isolation programs had an educational or training component: for example, courses on health topics, computer training or exercises. Technology can help seniors' isolation.