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2. Human sex ratio | Wikipedia

   en.wikipedia.org/wiki/Human_sex_ratio

   In humans, the natural sex ratio at birth is slightly biased towards the male sex. It is estimated to be about 1.05 [1] or 1.06 [2] or within a narrow range from 1.03 to 1.06 [3] males per female. The sex ratio for the entire world population is approximately 101 males to 100 females (2020 est.).

3. Maternal physiological changes in pregnancy | Wikipedia

   en.wikipedia.org/wiki/Maternal_physiological...

   These are normal physiological adaptations that cause changes in behavior, the functioning of the heart, blood vessels, and blood, metabolism including increases in blood sugar levels, kidney function, posture, and breathing. During pregnancy numerous hormones and proteins are secreted that also have a broad range of effects.

4. Pregnancy | Wikipedia

   en.wikipedia.org/wiki/Pregnancy

   Final weight gain takes place during the third trimester; this is the most weight gain throughout the pregnancy. The woman's abdomen will transform in shape as the fetus turns in a downward position ready for birth. The woman's navel will sometimes become convex, "popping" out, due to the expanding abdomen. The uterus, the muscular organ that ...

5. Here's the Income You Need to Be in the Top 50% of ... | AOL

   www.aol.com/heres-income-top-50-american...

   55 to 64. $90,640. 65 and older. $54,710. All respondents. $80,610. Data source: U.S. Census Bureau. As shown, the median income across all households was $80,610 in 2023. Households represented ...

6. Total fertility rate | Wikipedia

   en.wikipedia.org/wiki/Total_fertility_rate

   A 2023 map of countries by fertility rate. Blue indicates negative fertility rates. Red indicates positive rates. The total fertility rate (TFR) of a population is the average number of children that are born to a woman over her lifetime, if they were to experience the exact current age-specific fertility rates (ASFRs) through their lifetime, and they were to live from birth until the end of ...

7. List of United States cities by population | Wikipedia

   en.wikipedia.org/wiki/List_of_United_States...

   50 states and Washington, D.C. This table lists the 336 incorporated places in the United States, excluding the U.S. territories, with a population of at least 100,000 as of July 1, 2023, as estimated by the U.S. Census Bureau. Five states have no cities with populations exceeding 100,000. They are: Delaware, Maine, Vermont, West Virginia, and ...