What is the ratio of digits?
The term "the ratio of digits" may apply to the relative lengths of any two fingers or legs, but almost always used to refer specifically to the relative length of human ring and forefinger. This is commonly called the 2D: 4D ratio in relation to the relevant positions of the index and fingers as the second and fourth digits on the hand. The ratio is calculated by dividing the length of the right index finger with the length of the right ring finger, so that the ratio of less than 1 indicates that the finger finger is longer and the ratio more than 1 indicates the opposite. Scientific research has shown correlation between the differences in the numerical ratio and a number of physical and psychological qualities. Most men have annular fingers that are longer than their index finger, and most women have index fingers that are the same as fingering fingers or longer. The development of the fetus in the womb is governed by the type of hormones to which it is exposed to the development of fetal genitalia and other sexual structures and properties.
Masculin anatomy develops in response to the presence of higher levels called androgenizing hormones such as testosterone. This includes differences in the relative size of different areas of the brain compared to an average woman. One of the effects of androgenizing hormones is relatively longer rings and relatively shorter index fingers. Why this should be, it is not yet known, although other species such as gorillas and chimpanzees have been observed sexual dimorphism in the relative lengths of different numbers. The differences in the ratio of men's digits are one of the few differences in the physical sex, which are rather evident from birth and do not arise from hormonal changes during puberty.
A number of personal characteristics tend to correlate with the ratio of the digit, although correspondence between a specific digital ratio and specific mental and physical characteristics is by no means absolute. Average lengths and numbers of digits also differ between different ethnic groups for inheritanceRather than in the exposition of uterine testosterone, which further complicates attempts to use code lists as a predictor. Longer fingers and masculine digit ratio have been shown to be positively correlated with greater aggression, assertiveness and competitive behavior. Masculine conditions are also disproportionately common in people who are autistic or left -handed.
More male numerical conditions in men positively correlate with properties such as more masculine facial features, a higher number of sperm and musical abilities. Masculine Digitce Ratios in women positively correlates with properties such as high success in competing Sportsha's health problems that are more common in men than women such as heart disease. More ratios of male digits are also positively correlated with homosexuality in women, but most of the research showed no difference in the numbers between heterosexual and homosexual men. Men who have prostate cancer are also particularly more common in the ratio of male digitsAnd more female digits are more common in people who suffer from eating and schizophrenia intake disorders.