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There is no clear evidence to suggest that humans are evolving to become shorter overall. Evolution is a gradual process that occurs over long periods of time and is driven by various factors such as natural selection and genetic variation.

The average height of a population can be influenced by several factors, including genetics, nutrition, health, and socioeconomic conditions. In some cases, there may be fluctuations in average height due to changes in these factors over time, but it does not necessarily indicate a long-term trend toward shorter stature.

It's important to note that human populations around the world vary significantly in terms of height due to genetic and environmental factors. For example, populations in different regions may have distinct genetic variations that contribute to differences in average height. Additionally, nutrition and overall health play a crucial role in determining height, and improvements in these factors can lead to increased average height over time.

It's worth mentioning that evolutionary changes occur in response to selective pressures, such as changes in the environment or reproductive success. Currently, there is no widespread selective pressure favoring shorter stature in human populations, so it is unlikely to be a significant evolutionary trend.

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