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High Cost of Being 'Macho': More Muscle, Lower Immunity, Shorter Lifespan
pine Webmaster of Pineapple
2009/09/06 11:22
508 topics published
Gengnet Editor Chashu Zhuang Taipei Comprehensive Report Tuesday, September 1, 2009, 16:44:11

Being a "hunk" comes at a high cost and may lead to a shorter lifespan. A study suggests that muscular "hunks," while more attractive to women and having more sexual partners, have weaker immune systems compared to women and slimmer men. As a result, "hunks" may have shorter lifespans.

Hong Kong's *Ta Kung Pao* reports that men have more developed muscles than women because men historically needed to fight and hunt. From an evolutionary perspective, a muscular "hunk" not only signifies better physical strength but also represents the ability to provide for a family and protect the home, making him a reliable partner.

This ancient aesthetic standard persists today, which is why women are often drawn to muscular men. This phenomenon of competing with same-sex peers and displaying to the opposite sex is a form of evolutionary "sexual selection." Just as this process created deer antlers and peacock tails, it also shaped men's muscles.

Being a "hunk" has many benefits. Research shows that the more muscular a man is, the more sexual partners he tends to have in his lifetime, and his sexual experiences often begin earlier. However, maintaining muscle is costly. Due to intense competition, only the most muscular men win over attractive partners, leading men to invest heavily—often recklessly—in enhancing their sexual appeal.

A study based on data from the National Health and Nutrition Examination Survey (NHANES) reveals that maintaining male muscle mass is not only expensive but also comes at the cost of health. Over six years, the survey examined 12,000 American men and women, finding that men require 50% more calories than women, even after adjusting for activity levels.

The study also found that muscle mass is the most significant predictor of calorie intake in men, more so than their occupation or body mass index (BMI).

Additionally, having more muscle comes with another downside. Because men expend too many nutrients on maintaining muscle strength, their immune systems are far weaker than women's. Thus, the more muscular and dense a "hunk" is, the lower his immunity, potentially leading to a shorter lifespan.

Historically, muscular hunks have had better short-term mating opportunities, but slimmer men aren’t necessarily losers in the long run. While less muscular men may have later sexual experiences, their longer lifespans allow them to adopt a "longevity strategy," enabling them to accumulate as many or even more sexual partners over their lifetimes compared to hunks.

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