Sex File: I'm hooked on make-up sex with my boyfriend
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There is a scientific explanation for this phenomenon. When you feel threatened, your fight-or-flight response kicks in. Your body's automatic reaction to perceived danger or psychological stress triggers a surge of adrenaline. Your heart beats faster, pumping more blood to essential organs like the heart and lungs. Your breathing becomes more rapid, your pupils dilate, your hands feel clammy and your muscles tense.
