There is nothing worse than sitting next to someone whose breath smells bad. In order to solve this problem, people have tried various methods since thousands of years ago.
How does it work? Breath is made up of waste chemicals that the body makes.
Compared with other kinds of tests, a breath test is much quicker. Instead of taking hours, it only takes a few minutes.
Now, scientists are trying to use breath tests as many as they can.
| A．There are many ways to make your breath smell better |
| B．It’s much cheaper to do a breath test than other tests |
| C．How your breath smells says a lot about your health |
| D．In ancient China, people used to eat a special plant to make their breath smell better |
| E．Hopefully, someday, visits to the hospital will be a lot quicker and easier for everyone |
| F．Breath tests are also a lot easier to do than regular tests as people only need to blow into a special machine |
| G．Scientists from the Swiss Federal Institute of Technology found that these chemicals are different for each person |
