Fingers: watch your index finger!
It is proven: the greater exposure to testosterone in the womb causes the index finger to grow more slowly in relation to the other four. This explains why if a man has a shorter index than voiding his owner, he is more inclined to adopt risky behaviors, as shown by research from Concordia University, in Quebec (Canada).
In addition, it is associated with an increase in mathematical and spatial skills at school age, according to the British Journal of Psychology . Having it longer also has advantages: it reduces the risk of developing prostate cancer by 33%.
The knee: a question of ligaments
The shorter and less bulky the anterior cruciate ligament of the knee, the easier it is for an athlete to injure this joint, as scientists at the University of Vermont, USA, have found using magnetic resonance imaging of the knee. athletes.
Knowing this information is especially important to take preventive measures in those who practice rugby or soccer , which are the specialties in which the probability of having this type of injury is greater.
Height: tall or short better?
Being tall is not always an advantage, if we pay attention to a study by the University of Hawaii that concluded that short people live longer. The reason is in a protective form of the FOXO longevity gene, more common in those of small stature. However, height helps control obesity, since, as has been shown at the University of Queensland, in Australia, being tall is related to genes that reduce body mass index.
In addition, for every 6.3 centimeters taller, the risk of coronary heart disease is reduced by 13.5%, according to the New England Journal of Medicine .
Better curvy
Women with prominent buttocks have higher levels of good cholesterol, which protects them against hardening of the arteries, apart from the fact that this anatomical quality reduces the risk of diabetes. That is the conclusion of a study from the University of Oxford, in the United Kingdom, published in Nature . The scientific reason for this protective effect is that they produce more hormones capable of metabolizing sugars.
Accuracies in brain volume
Determining whether or not the IQ depends on the size of the brain is a challenge. For the first time, a group of researchers seems to have found the answer: in a meta-analysis with more than 8,000 participants, they have found that what determines intelligence is the structure of the brain.
Volume, they say in Neuroscience & Biobehavioral Reviews , only works as a compensatory mechanism in some cognitive functions. However, it should be noted that there is a relationship between the decrease in gray matter in some areas and the memory deficits associated with Parkinson’s and other diseases.
A big nose breathes better
Owners of large napias get colds less. This is because a large nose is a superior natural barrier to stopping the infectious agents that we inhale. Specifically, scientists from the University of Iowa, in the USA, demonstrated with the help of artificial noses that multiplying by 2.3 the size of the nasal organ, 6.5% more germs are filtered.
The eyes: beauty versus health
A person with large eyes may be more attractive, but their eye health doesn’t always look good. While a normal eye has a diameter of 22-24mm, the myopic eye can be up to 5mm larger. The size favors the development of the disorder.
If the ocular sphere is huge, the light focused by the eye’s lens system does not reach the back wall, the retina, where images are processed, and causes distant objects to appear blurry. The sensation of large or small eyes also depends on the structure of the orbital socket where the organs of vision are housed.
Birth weight
What is the ideal? According to research from the University of Manchester, in the United Kingdom, if a newborn weighs more than 4.5 kg or less than 2.5 kg, he has a risk around 60% greater than the rest of suffering from autism. The researchers, who came to this conclusion after studying 600,000 Swedish newborns, attribute it to the fact that “irregular growth shows that something has gone wrong in the pregnancy, possibly related to the development of the placenta, and is likely to affect the formation of the placenta. of the brain ”, it is affirmed in The American Journal of Psychiatry.
Breasts: less is more
When it comes to mammary glands, more is not always better. Excessively generous breasts can cause serious back problems for girls and greater curvatures of the spine than is healthy, especially if the cup is above size D – between 8 and 9 inches. In addition, large busts are 24% less sensitive than small ones, according to calculations by the University of Vienna.
