How the Shape of Dogs' Heads Impacts Their Sleep Quality

A study conducted by Hungarian researchers found that flat-faced dog breeds, such as French bulldogs and pugs, sleep more due to breed-specific sleep apnea, longer REM sleep phases, and signs of white matter loss in their sleep EEG patterns. These breeds, known as brachycephalic dogs, suffer from health issues associated with their shortened skulls, including breathing difficulties and sleep problems. The study suggests that the abnormal skull shape may affect neural functioning and cognitive abilities.