Question

what did the people who received the help do in return? ​

Answer 1

Answer:

Scientific research provides compelling data to support the anecdotal evidence that giving is a powerful pathway to personal growth and lasting happiness. Through fMRI technology, we now know that giving activates the same parts of the brain that are stimulated by food and sex. Experiments show evidence that altruism is hardwired in the brain—and it's pleasurable. Helping others may just be the secret to living a life that is not only happier but also healthier, wealthier, more productive, and meaningful.