Students often confuse reflexive possessive pronouns with ordinary possessive pronouns when doing exercises.

Many drivers suffer from the photic sneeze reflex when they step out of a shaded parking lot into bright sunlight.

I bought a used single-lens reflex last weekend and have been practicing portrait lighting ever since.

After the injury, she developed reflex sympathetic dystrophy that caused constant burning pain in her hand.

She learned in her lactation class that some women experience a dysphoric milk ejection reflex just before their milk lets down.