The benefits of Penny and Ted's hard work are obvious. The organization they started, the Greater West Hollywood Food Coalition, serves an estimated 45,000 meals each year. But, as it turns out, Penny and Ted's clients may not be the only ones who gain from their altruism. Doing good may work to the couple's advantage as well.
The effects of altruistic behavior on mental health have been fairly well documented. "Happiness is a byproduct of living generously," Post says.
A study published last year in the journal Science examined the relationship between philanthropy and well-being. Researchers analyzed the spending patterns of more than 600 men and women and questioned them about their general happiness. Money used to pay bills or buy things for themselves was considered "personal spending"; gifts for others and donations to charities were categorized as "pro-social spending." Personal spending was found to be unrelated to happiness, whereas pro-social spending was directly correlated to it.
Volunteering has also been shown to have a positive effect on people's mental state, particularly as they age. Volunteerism serves as a way to keep older adults active in the community and prevents them from becoming socially isolated. It's thought that volunteerism also enhances older adults' sense of belonging, increases their sense of purpose and improves their perception of their own self-competence.
Teens aren't immune to the mood-enhancing effects of altruistic behavior. A study published in the Journal of Research in Personality in 2008 showed that students who engage in virtue-building activities such as volunteering report being happier than their more hedonistic counterparts. Pleasure-seeking behavior, such as drinking alcohol, had no effect on happiness whatsoever.
The positive effects of giving behavior appear to extend beyond a person's state of mind to their physical health. "People that help others live longer than those who don't," says Stephanie Brown, assistant professor of general medicine at the University of Michigan Medical School and a faculty associate at the University of Michigan Institute for Social Research.
A 2003 study by Brown followed more than 1,500 elderly couples for five years; it found that people who provided hands-on support (such as help with transportation, shopping housework or childcare) to friends, relatives or neighbors were half as likely to die over the study period as their less helpful counterparts.
The specific mechanisms by which altruistic behavior translates into better health are not yet well understood. Experts such as Brown and Post speculate that acting in a warm, compassionate way affects certain hormones and chemicals in the body.
"There's a growing body of evidence showing that compassionate care and helping activities elevate levels of neurotransmitters like dopamine," says Stony Brook's Post, who wrote "Good Things Happen to Good People." "They also impact the release of endorphins, the body's natural opiates, resulting in what has been widely documented as the 'helper's high.' "
Compassionate activities are associated with elevated levels of oxytocin, a hormone that triggers a number of favorable physiological changes throughout the body. Higher levels of oxytocin, for example, are associated with a reduction in the levels of certain stress hormones that cause undue wear and tear on the body. "Acts of kindness always move us away from hostile and angry emotions that are clearly connected with elevated stress and higher mortality over the years," Post says.
It's also still unclear whether one form of altruism is more health-enhancing than another. Giving money may be just as beneficial as donating time; providing emotional support might be just as advantageous as helping in a more hands-on ways.
Altruism -- in any form -- doesn't come naturally to everyone. Some individuals are clearly more inclined to reach out and involve themselves in charitable activities. Research suggests that the proclivity may be, at least in part, genetic. Perhaps more important is a person's social environment, particularly when growing up.
That's not to say that anyone can't choose to act charitably. And it doesn't take much altruism to reap the benefits of better health. "Studies emphasize that just a couple of hours of volunteering a week can make the difference," Post says.
The Landreths understand this. "Even at the end of a long day, after spending a couple of hours serving the meal and talking to our clients -- and listening to them -- we feel re-energized and replenished," Ted Landreth says.
But whether it's carving out time to volunteer or dipping into savings to make a financial donation, making philanthropy a regular part of your life requires a degree of dedication and sacrifice. Despite my best intentions, it took me months to make it out to Penny and Ted's corner to help. And, when the day rolled around to volunteer, I thought of loads of excuses.
Finally, I forced myself out of the house and spent an evening serving up very unusual casseroles to grateful and gracious people. I don't kid myself into believing that this isolated experience will improve my health. Those benefits are likely reserved for people like the Landreths who make altruism a way of life.
Both currently in their 60s, Penny and Ted are not only in excellent physical health, they simply seem happy too.
Ulene is a board-certified specialist in preventive medicine practicing in Los Angeles. The M.D. appears once a month. email@example.com