Study Reveals Dramatic Rise in Height and Weight of Men Globally
According to a recent study, men around the world have gained height and weight twice as fast as women over the past century, leading to a significant increase in the difference between the sexes. The researchers, led by Professor Lewis Halsey at the University of Roehampton, analyzed data from the World Health Organization, overseas authorities, and UK records to explore how height and weight have changed in response to improved living conditions.
The study found that as living conditions improve, both height and weight increase, but at a significantly faster rate in men than women. For every 0.2 point increase in the human development index (HDI), which measures life expectancy, education, and per capita income, women were on average 1.7cm taller and 2.7kg heavier, while men were 4cm taller and 6.5kg heavier.
Historical records in the UK, where HDI rose from 0.8 in 1900 to 0.94 in 2022, show that average male height increased 4% from 170cm to 177cm, while average female height rose only 1.9% from 159cm to 162cm. The researchers speculate that women’s sexual preferences may have contributed to this trend, with women potentially being attracted to taller, more muscular men.
The findings suggest that sexual selection has shaped the male and female body, with stature and physique serving as indicators of health and vitality. Taller men may also be perceived as more formidable and well-made, while heavier men may be seen as more robust and capable of defending their partners and offspring.
While there are benefits to being taller, such as earning more money, taller people are also more prone to certain cancers. The study’s lead author, Professor Halsey, notes that the findings highlight the importance of considering the social and ecological factors that shape human bodies.
