This seems to be especially true in older individuals.
Most people who care for others in a selfless manner do so because of a genuine desire to help and improve the world around them. Nonetheless, modern psychological research has shown that caring has benefits for all involved; people who volunteer or care for others on a consistent basis tend to have better psychological well-being, including fewer depressive symptoms and higher life-satisfaction.
Although “caring” can involve volunteering as part of an organised group or club, it can be as simple as reaching out to a workmate or classmate who looks lonely or is struggling with an issue. Studies show that people who reach out like this can benefit in multiple ways.