The culture of each country and people determines the scope of this issue itself, but in many countries men prefer to marry with the opposite sex, which is younger than them. Girls - respectively, on the contrary. Scientists decided to test the correctness of this preference.
The conclusions of the scientists turned out to be quite amusing: for healthy offspring, a man should choose a woman who is at least fifteen years younger than him. Then their joint child will live at least eighteen years. To obtain this data, more than seven hundred marriages of the seventeenth and nineteenth centuries were analyzed. Then this difference was only ten percent, and the average difference was three years.
Scientists themselves believe that a woman should be six years younger than a man - this is the most optimal age. Nowadays marriage is more often concluded by convenience than by love.
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