The physiological benefits of what stress management strategy are supported by research?

The "feel-good, do-good" phenomenon suggests that people who are already happy are

a. more likely to be productive at work. b. more likely to try to make other people happy. c. more likely to be safe drivers and responsible citizens. d. more likely to be helpful to others.

How does habituation time change over the course of early development?

What will be an ideal response?