Anna Ziomkiewicz

TL;DR: It is documented that women with higher breast–to–underbreast ratio (large breasts) and women with relatively low WHR (narrow waists) have higher fecundity as assessed by precise measurements of daily levels of 17–β–oestradiol (E2) and progesterone.

TL;DR: It is shown that women who are more symmetrical, as assessed by the degree of inequality in the fourth-digit length of their right and left hands, have 13% higher average levels of estradiol over the menstrual cycle than less symmetrical women.

TL;DR: A strong association exists between physical activity and levels of estradiol among women of reproductive age and a modern lifestyle, characterized by reduced physical activity, may contribute to a rise in the levels of Estradiol produced during menstrual cycles and thus to higher cumulative lifetime exposure to estradio, resulting in a higher risk of breast cancer.

TL;DR: In healthy women, a non-linear association between body fat and estradiol levels was found and both very low and high body fat was associated with decreased estradio levels, strongly influenced by women's energy balance.

TL;DR: In this article, a positive relationship was observed between ponderal index at birth (an indicator of nutritional status, calculated as birth weight/(birth length) and levels of estradiol (E2) in menstrual cycles, after controlling for potential confounding factors.