A recent study has shed light on why humans are the only species that exhibit spinal structure differences between the sexes. The shape and density of women’s spine put them at a greater risk for developing scoliosis and osteoporosis. This physical difference in spinal structure between the sexes is unique to humans, but it’s purpose has long puzzled scientists.
A recent study, however, has provided evidence to suggest these differences are present at birth, and that they occur because a woman’s spine serves an integral role in helping women adapt to the physical challenges of pregnancy. For the study, a team of researchers at Children’s Hospital Los Angeles used magnetic resonance imaging (MRI) to study the dimensions of 70 full-term newborns (35 boys and 35 girls). According to the press release, newborns’ body lengths, heads, waist circumferences, and weight did not differ greatly…
