A new study reveals that men worldwide are experiencing greater increases in height and weight compared to women over the past century. This trend, linked to improved living conditions and access to better nutrition, highlights the influence of sexual selection on body size preferences.
Amid the profound changes humanity has witnessed, one might be forgiven for failing to notice a rise in sexy and formidable men: those tall, broad-shouldered types that are strangers to self-doubt.
“We’re seeing insights into how sexual selection has shaped the male and female body and how improved environments, in terms of food and a lower burden of disease, have freed us from our shackles,” said Prof Lewis Halsey at the University of Roehampton.Organization, overseas authorities and UK records to see how height and weight have changed with living conditions.
To see whether similar trends played out within countries, the researchers delved into historical height records in the UK where HDI rose from 0.8 in 1900 to 0.94 in 2022. During the first half of the century, average female height increased 1.9% from 159cm to 162cm, while average male height rose 4% from 170cm to 177cm.
Stature and physique are prime indicators of health and vitality, Halsey said, while sexual selection also favours men who are better able to protect and defend their partners and offspring against others.
HUMAN HEIGHT WEIGHT GAIN SEXUAL SELECTION LIVING CONDITIONS NUTRITION
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