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Doctors want their patients to make fewer visits to their offices. They also want them to stay out of the hospital. This is increasingly possible because of the promising new advances in wireless technology. It is now feasible to provide some forms of health care through small wireless devices that patients can wear. The market for these devices, often called smart apparel, is immense, and it is growing quickly. In 2011, about 14 million of these products were produced at a value of about $2 billion. Experts predict that by 2016, the figures will be closer to 200 million devices and $6 billion.

The first devices to be developed have been watches, bracelets, or other types of “jewelry.” Their primary purpose has been to monitor a patient’s basic health indicators, such as blood pressure, heart rate, and breathing rate. They can continuously transmit the information to a patient’s doctor. This kind of information is very important because it can show whether patients are healthy and stable or if they might be heading for trouble. It is particularly valuable to patients with cardiovascular or respiratory diseases, who would have to visit their doctors frequently if they did not have these monitoring devices. Another important group of users is pregnant women. The devices can transmit information about their unborn babies to their doctors. This can help ensure that the babies remain healthy until they are born.
More recent devices can monitor a much wider range of indicators. They can measure the level of sugar in a patient’s blood, a patient’s body temperature, and how much energy a patient is using. Like the earlier devices, they can transmit this information to the patient’s doctors, who can assess it from their offices. In this way, doctors become aware of problems before the problems become a danger to the patients.
People in developed countries are increasingly concerned about staying in good health. They are careful about their diet, they exercise, and they try to control stress in their lives. Wireless apparel can help them manage all of these things. There are several devices already on the market—from bracelets to underwear—that can provide users with basic health information, such as body temperature, heart rate, and blood pressure. In addition, these devices can report how many steps a user takes, how many calories the user has burned, and even if the user is sitting up straight. For both the sick and the healthy, smart apparel may be in their future.

Q.what do you think is the answer to this article? choose two.
Newer wearable devices can also monitor the - and the - .
A.number of steps taken B.body temperature C.level of sugar in blood D.breathing rate