UF study finds pressure and repetition can erase smiling’s mood boost
A UF report describes an online experiment in which repeatedly posing smiles, especially under a payment threat, reduced or erased short-term happiness benefits.
What the record says
A University of Florida report published November 3 describes research on when posing a smile changes people’s mood. The online experiment included 1,174 people in its final analysis. Participants viewed pleasant or unpleasant images and either smiled deliberately or let their faces respond naturally, once or repeatedly. Some were told that failing to follow instructions could reduce their payment, although everyone ultimately received the full amount. A single posed smile produced a small happiness increase with unpleasant images; repetition reduced that benefit, and repetition combined with financial pressure erased it. With pleasant images, repeated or pressured smiles reduced happiness compared with natural expressions. The findings were published October 1 in the Journal of Experimental Social Psychology.
Source details and supporting locations.
Practical next step
Read UF’s explanation of the experiment and its design before applying the findings to workplace expectations.
Limits and what is not established
This was an online experiment measuring short-term self-reported mood, not a workplace trial or a treatment study. UF’s report date and the earlier journal publication date are distinct.
Sources checked November 4, 2026. Later notices may change instructions or arrangements.
Original sources
University of Florida News: original information