https://www.sciencedaily.com/releases/2022/11/221123213553.htm

Taking in data from 28 studies, comprising of 191,652 participants from 21 countries, the findings, however, also show that volunteering or looking after grandchildren may help reduce loneliness.

Publishing their findings in the peer-reviewed journal Aging and Mental Health, a team of international experts led by scientists at King's College London, state the results highlight a need to develop targeted interventions to combat loneliness for older adults who are caring for their partner or spouse.