Attraction and Non-Lordosis Factors (Aggression & Breast Size)[edit source]
Testosterone, Estrogen, Breast Size has nothing to do with Female Bodily Attractiveness, only Waist-to-Hip Ratio and BMI https://labs.psych.ucsb.edu/roney/james/body%20attractiveness.ehb.published.pdf
these pictures are bad examples[edit source]
The lumbar vertebrae are not particularly hyper-extended in any of these. It's clearly rounded in the cases of the downward dog yoga pose, basically just neutral in the one at the bottom...
Basically we should be posting something like that, THAT is an arched hyperextended lower back in lordosis.