Secret at the hands of gentlemen

Why is a man's ring finger longer than the index finger while the opposite is true for women? US scientists all claim to be "programmed" by sex hormones when the child is a fetus in the womb.

From ancient Roman times, people had the custom of wearing a wedding ring on the youngest finger (at that time called an anonymous finger, from then on, it was called ring finger) and in many cultures, people We conceive that the man's ring finger is long but that is a sign of a lot of children.

Picture 1 of Secret at the hands of gentlemen
Sex hormones affect the length of the fingers.

To explain why the ring finger is so long, the researchers found that the cells form the fingers of the fetus of the fetus with multiple receptors that receive sex hormones. The short-term phenomenon of the fingers (second and fourth from the thumb) in mice is very similar to humans.

Through a variety of bio-determination data in them, one conclusion was drawn: t estosteron (male hormone) makes the fourth finger (ring finger) longer, and estrogen (female hormone) as the second finger. two (forefinger) longer.

The researchers also determined that the bones of the fingers also showed that they were sensitive to sex hormones, regulating cell division - precursors to bone tissue.

The 'locking ' of testosteron receptors will result in the characteristic appearance of the female finger length and if additional testosteron or estrogen is added, it will create a hand with similar ratios of men and women. application. Scientists also identified 19 genes, sensitive to the effects of testosteron and estrogen when the baby was still in the womb.

This finding by researchers is not 'useless' , 'meaningless' or 'nonsense' but it is the basis for genetically explaining, showing interactions between finger lengths. hand with other signs in a particular individual, starting with sperm count, aggressiveness, musical ability, sexual orientation, athletic skills and achievements to possible illnesses suffering from autism, depression, myocardial infarction, breast cancer .