19 Jul Your breast shape changes through your cycle
Strange, but true: Your breasts change shape throughout the course of your monthly cycle.
According to a study in the journal Ethology and Sociobiology, your breasts are more asymmetrical during Week 1 (your period week) and Week 4 (your premenstrual week) when estrogen is low.
They’re more symmetrical during Week 2 (which starts 8 days after the onset of your period) when estrogen is high.
And they’re at their most symmetrical during ovulation at the end of Week 2 (the mid-point of your cycle).
Why the fluctuation in shape? The researchers theorize it may be a subtle cue to men that indicates when you’re approaching the most fertile phase of your cycle.
I'm the women's health journalist who pioneered the cycle-syncing and hormone awareness movement in 2005 with my groundbreaking, award-winning book, 28 Days: What Your Cycle Reveals About Your Moods, Health & Potential. I'm also the creator of the popular Hormone Horoscope Apps and Female Forecaster App. I founded Hormonology as a way to continue sharing hormone cycle education around the globe.
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