For the last 150 years, the human species has been getting taller. In Western nations, people are around 10 cms taller (nearly 4 inches). Better public health and diets during childhood have fuelled the rise. Women preferring taller men who then have taller offspring could also have pushed the increase.
Unfortunately, this won’t last forever. There are physical limits. People above 188cm (6ft 2in) are more likely to suffer back problems. Above 203cm (6ft 8in), the heart finds it difficult to pump blood and heart problems increase.
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