7. Doctors say smartphones can help patients find out if they are sick and treat illnesses. Newapps use smartphone features to help people who may be sick. Some apps use the

phone's camera. Others use the microphone.

8. Shwetek Patel is a computer scientist. Patel says smartphones are becoming medical tools.

They already do some of the things doctors' tools can do. Smartphones count how many steps

you take. They can track what you eat. They can even count your heartbeats. Now smartphones

can find illnesses, too.

9. For example, one smartphone app checks for asthma. People with asthma have trouble

breathing. The app can tell if someone is not breathing well. It uses the phone's microphone.

The person breathes into the microphone. Then the app gives a result.

10. Another app can say if someone has a blood problem. It can tell if there is enough hemoglobin

in the blood. The app uses the phone's camera. First, a person puts one finger over the flash. They

take a picture. The app reads the picture. It says how much hemoglobin is in the person's blood!

11. These apps are good for patients, Patel says. They help people care for themselves. They can

learn about their health from home.

12. This is useful in poorer countries. In many places, health care is limited. It is not easy to get

to a doctor. Some people cannot afford a doctor's visit. Others cannot travel far to see a doctor.

Smartphones can help. They make it easier to stay healthy without going to the doctor. This saves

time. It can also save money
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VikaGrin1    3   16.12.2021 13:01    3