托福阅读素材（七）

　　5:47

　　(Laughter)

　　5:48

　　That's like 25 grand a smile. It's not bad. And think about it this way: 25,000 times 400 -- quite a few kids out there feel like Mark Zuckerberg every day.

　　6:00

　　(Laughter)

　　6:01

　　And unlike lots of chocolate, lots of smiling can actually make you healthier. Smiling can help reduce the level of stress-enhancing hormones like cortisol, adrenaline and dopamine, increase the level of mood-enhancing hormones like endorphins, and reduce overall blood pressure.

　　6:19

　　And if that's not enough, smiling can actually make you look good in the eyes of others. A recent study at Penn State University found that when you smile, you don't only appear to be more likable and courteous, but you actually appear to be more competent.

　　6:36

　　So whenever you want to look great and competent, reduce your stress or improve your marriage, or feel as if you just had a whole stack of high-quality chocolate without incurring the caloric cost, or as if you found 25 grand in a pocket of an old jacket you hadn't worn for ages, or whenever you want to tap into a superpower that will help you and everyone around you live a longer, healthier, happier life, smile.