Press Releases

Research Shows that Times Flies When You’re Counting Down

NYU Stern Professor Vicki Morwitz explains how counting backwards can motivate people.

These findings offer some insights into how to tackle public health issues like obesity or dental hygiene.

In a new study, Vicki Morwitz, Harvey Golub Professor of Business Leadership at the NYU Stern School of Business, and Stern alumnus Edith Shalev (PhD ’10) at The Technion Israel Institute of Technology, show that counting down (i.e., 100 to 1) while performing a task shortens the perceived duration of the task compared to counting up (i.e., 1 to 100).

Morwitz and Shalev conducted three studies where participants were asked to use a product (a hand exercise ball or an ergonomic hand grip) or count geometrical shapes on a computer screen. They found that people hold more favorable attitudes toward a product and a greater intention to buy that product after using the item and counting downward versus upward.

The researchers proposed several applications of this research:
  • People may be more likely to complete physical exercises if their coach instructs them to count downward because they feel the task is less taxing.
  • Children may feel that tooth brushing is less onerous and be more inclined to brush for two full minutes if their dentist instructs them to count downward while brushing.
  • Conversely, people who are stressed or agitated may try counting upward (e.g., counting sheep when you have trouble sleeping) to increase the perception of relaxation.
“These findings offer some insights into how to tackle public health issues like obesity or dental hygiene,” explains Morwitz. “Downward counting can shorten time perception and enhance attitudes towards important, yet monotonous, tasks and healthy behaviors such as physical exercise and teeth brushing.”

The article, “Does Time Fly When You're Counting Down? The Effect of Counting Direction on Subjective Time Judgment,” is forthcoming in the Journal of Consumer Psychology.

To speak with Professor Vicki Morwitz, please contact her directly at 212-998-0518 or; or contact Carolyn Ritter in NYU Stern’s Office of Public Affairs at 212-998-0624 or