According to a study in the journal Experimental Brain Research, where you look and how fast you dart your eyes are affected by a certain change in your hormones.
Specifically, during your Week 3 (which starts right after ovulation in the middle of your cycle), if you see someone staring at something or their gaze shifts suddenly toward a person or object—for instance, if someone approaching you looks quickly to the right—you’re not only more likely to look in the same direction, you look more quickly than you would during other weeks of your cycle.
The researchers theorize that as progesterone rises throughout this week, it makes you more wary of potential threats in case your egg got fertilized during ovulation, prompting you to be on the lookout for people or situations that can cause you harm.
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