A small study from Japan finds an after-lunch nap may help alleviate concerns with working during hot temperatures, reports Reuters.

Lead author Ken Tokizawa and his research team at the National Institute of Occupational Safety and Health in Kawasaki wanted to examine the effect of sleep loss in work situations such as construction sites.

“In the construction industry, falls are major safety problems,” said Tokizawa in an email to Reuters Health. He added that heat strokes may cause falls for workers.