The pelvis acts as a scaffolding for the buttocks, a fleshy anatomical structure for whose evolutionary usefulness there are several possible explanations. First, it serves as a protection for the anus, an outlet sphincter for waste; The buttocks not only provide protection for this delicate sphincter, but also serve to absorb all kinds of bad odors.
The second explanation for the evolutionary origin of the butt is erotic in nature. The accumulation of fat in the butt can be an indication of sexual status, health and fertile capacity, in the case of women. The prominent buttocks could be a strategy to increase the chances of erotic attraction and, therefore, ensure the offspring and the survival of the species.
Regarding the structure, there are many types of rear. Most cosmetic surgeons recognize four shapes: square or H, mostly in males; round, or O-shaped; heart-shaped (inverted heart-shaped), pear-shaped, or A-shaped; and finally, inverted, or V-shaped.
The H shape is often associated with wide hip bones. On the other hand, the more rounded dispositions are considered quite healthy , since the fat is distributed evenly on the upper and lower part of the buttocks.
In butts whose shape resembles a heart, adipose tissue accumulates in the lower areas. This implies that, as we age and lose estrogen with the arrival of menopause (in the case of women), lipid reserves change position and rise, with the consequent flaccidity. At this point in life, it is more common for the female buttocks to adopt an inverted or V shape.
From a medical point of view, these distinctions are not trivial. Scientists have concluded that the rounded or heart – shaped asses are associated with a lower risk of diabetes and cardiovascular disease.
According to researchers from the University of Oxford, in the International Journal of Obesity, the accumulation of fat in the lower areas of the body generates a protective effect, and is not usually accompanied by more dangerous deposits near vital organs, such as the liver or the heart.
If you are exercising, your muscle mass will tend to round your glutes. Obviously, a sedentary lifestyle (in addition to many other associated risks that it entails) is associated with flaccidity and the accumulation of fat; For its part, physical activity helps the buttocks to be firmer and tighter.
