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2. Human physical appearance - Wikipedia

   en.wikipedia.org/wiki/Human_physical_appearance

   Human physical appearance is the outward phenotype or look of human beings. Image of a European female (left) and an East Asian male (right) human body seen from front (upper) and back (lower). Adult human bodies photographed whose naturally-occurring pubic, body, facial, but not head hair have been deliberately removed to show anatomy.

3. Human body - Wikipedia

   en.wikipedia.org/wiki/Human_body

   The adult male body is about 60% total body water content of some 42 litres (9.2 imp gal; 11 US gal). This is made up of about 19 litres (4.2 imp gal; 5.0 US gal) of extracellular fluid including about 3.2 litres (0.70 imp gal; 0.85 US gal) of blood plasma and about 8.4 litres (1.8 imp gal; 2.2 US gal) of interstitial fluid , and about 23 ...

4. Development of the human body - Wikipedia

   en.wikipedia.org/wiki/Development_of_the_human_body

   Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult body has been developed. Until the maturation of their reproductive capabilities, the pre-pubertal physical differences between boys and girls are the external sex organs.

5. Physical activity - Wikipedia

   en.wikipedia.org/wiki/Physical_activity

   Physical activity is defined as any voluntary bodily movement produced by skeletal muscles that requires energy expenditure. [1] Physical activity encompasses all activities, at any intensity, performed during any time of day or night. [2] It includes both voluntary exercise and incidental activity integrated into the daily routine. [3]

6. List of human cell types - Wikipedia

   en.wikipedia.org/wiki/List_of_human_cell_types

   The adult human body is estimated to contain about 30 trillion (3×10 13) human cells, with the number varying between 20 and 40 trillion depending on factors such as sex, age, and weight. Additionally, there are approximately an equal number of bacterial cells.

7. Physical Activity Guidelines for Americans - Wikipedia

   en.wikipedia.org/wiki/Physical_Activity...

   Adults with chronic conditions or disabilities, who are able, should do at least 150 minutes (2 hours and 30 minutes) to 300 minutes (5 hours) a week of moderate-intensity, or 75 minutes (1 hour and 15 minutes) to 150 minutes (2 hours and 30 minutes) a week of vigorous-intensity aerobic physical activity, or an equivalent combination of ...