Model Hannah Stocking has the rare ability to voluntarily control the dilation and constriction of her pupils.
This is known as voluntary pupillary modulation, allowing people to override their autonomic nervous system.
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Voluntary pupil control is real but extremely rare and produces modest, slow changes (~0.8–2.4 mm), not the dramatic instantaneous shifts shown here. Similar Hannah Stocking eye clips have been widely flagged as edited/CGI. sciencedirect.com/science/articl…livescience.com/man-can-contro…
Mark Eydelshteyn in BALENCIAGA , Zoe Saldana in SAINT LAURENT , Lupita Nyong'o in CHANEL and Hannah Stocking in CELIA KRITHARIOTI attend the 97th Academy Awards 2025.
📸: Getty
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