Because of the many deep rooted evolutionary instincts that all humans possess, 95% of females prefer men with broad shoulders, however, this instinct is very primitive and obsolete in this modern age of plentiful food, so the effect of this preference for broad shoulders has very little impact on how attracted a woman is going to be to a man with smaller shoulders.
You will be happy to know that men with broad shoulders are no more likely to have sex with a woman than a man with smaller shoulders. Although women prefer wide shoulders, the real biggie when it comes to having more sex is height and not shoulder width.
Unless the man is very short and extremely thin, they can work out regularly on the deltoid series of muscles three times per week for two to three years and posses shoulders that appear substantially larger and attractive. This will also make the man appear healthy and of course in shape which really matters to a woman.
Wide shoulders matter to women the most at 15 to 25 years of age. While woman mature sooner than men, at this age group they are still less mature and physical appearance means more to them. As women age, they mature rather quickly and soon realize that there is much more to a man than physical appearance. So thin men have little to worry about past age 35.
Several studies show that less educated women prefer more physical traits in men than educated women. Sophisticated women are more aware of the benefits of an intelligent man as opposed to a well built one. Some reasons for this are the fact the less educated women have less exposure to educated intelligent men and do not get the opportunity to see the benefits of dating or marrying an intelligent man. Another reason may be attributed to the fact that less education doesn't allow women to realize the benefits of an intelligent man as opposed to a broad shouldered strong man for long term financial stability.
Wide shouldered men tend to be a bit egocentric and that tends to cause them to treat their women slightly less favorably than their lesser built male counterparts. Women treat nicely built men better at a very young age which teaches men to feel they can get away with more. Women quickly outgrow this, but men take much longer to mature than women, especially when they learn a behavior at a young impressionable age.
Wide shouldered men will have the best luck capitalizing on their build in the bar scene as less educated women tend to frequent bars more often than educated women do. Reasons for this include lifestyles that less educated women tend to have including smoking, drinking and shorter marriages. Less educated women place a man's build higher on their list of features than an educated women would.
Men with average shoulder width have the longest marriages. Wide shouldered men tend to attract slightly less educated women who have shorter marriages mostly due to financial reasons.
Women still prefer a wide shouldered man, but new technologies in the past century have made their practical use unnecessary and today only the attractive look remains.
Women do like to look at wide shoulders and it is built into their circuitry, but lifestyles have changed quite a lot in the past several centuries that required women to rethink what is important in a man. In prehistoric times, a wide shouldered man was a requirement for survival as it helped in hunting for food. In the pioneer days, a wide shouldered man was important as it would make performing physical chores such as farming or building a log home easier. Today wide shoulders are less important, but the instinct remains due to thousands of years of evolution.
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