| 1 | She likes to help others. | |
| 2 | Does it motivate and, if so, is it just by making people feel good, or is it more than that? | |
| 3 | But after making such a personal sacrifice, would you ever be a Good Samaritan again? | |
| 4 | Zzzzzzz. A helpful turtle arm proves the perfect pillow for an exhausted hippo. | |
| 5 | Over and over again, studies have shown that altruism is one of the best ways to boost your happiness. |