In Mutual Aid systems, neighbors work cooperatively to meet the needs of everyone within the community. There is help with resources, e.g., food, money, skills, transportation, running errands, etc.— which are then redistributed to those in the community who are in need.
Altruism simply means selflessness: the concern for the wellbeing of others. There are four main types of altruism, including reciprocal altruism (or mutualism).
For me, Mutual Aid has lessened the harmful mental health consequences of being shut in and shut out from others, such as loneliness, depression, and anxiety. I've regained my purpose, and feel a stronger connection to my immediate community and the DC community overall.