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In the United States, only 80 percent of those over age 64 meet the recommended guidelines for aerobic exercise compared with 20 percent for adults aged 18 to 44.
<h3>What is
aerobic exercise?</h3>
Aerobic is the physical exercise of the boy and musculature. This contributes to increased muscle flexibility and contraction. It increases the body temperature and helps the body retain heat in the proper way.
Increased oxygen consumption and heart rate from physical exertion. It enhances one's level of physical fitness. Some of the examples of the aerobics exercise are jogging. Brisk walking. Swimming laps. Aerobic dancing, like Zumba.
Thus, 80 percent and 20 percent.
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Historians used to study how individuals lived in the ancient times with the help of archaeological sources such as artifacts,burials, and remains. Archaeology is the study of societies who lived in the past. It looks for exemplars in the artifacts which help to obtain clues about their origins. Like archaeologists, historians used to study from clothes, coins to artwork and monuments. However, Archaeologist relies even more on written evidences which are also considered as primary records such as official reports, newspapers,books.