The American Heart Association explains an electrocardiogram (EKG or ECG) is a test that measures the electrical activity of the heartbeat.
Language policy [edit]. Pashto and Dari are the official languages of Afghanistan. In 1980, other regional languages were granted official status in the regions where they are the language of the majority.
The population of Afghanistan is estimated at 32.6 million. Afghanistan is home to a number of ethnic groups. The largest is the Pashtun, 42 percent of the population. Tajiks make up 27 percent, Hazaras 8 percent, and Uzbeks 9 percent, Aimaks 4 percent, Turkmen 3 percent and Baluchi 2 percent.