07/14/2026
Important to know and remember during these hot months of summer!
Studies on dogs, primates, and rodents show that even mild hyperthermia affects the prefrontal cortex — the part of the brain responsible for impulse control, decision‑making, and behavioural inhibition.
When body temperature rises by 1–2°C, the brain:
🔘processes information more slowly
🔘becomes more reactive to movement
🔘loses fine motor control
🔘struggles with inhibition
Heat alters the nervous system’s ability to regulate arousal
References:
Hall, E. J., Carter, A. J., & Bradshaw, J. W. S. (1999).
Effects of mild hyperthermia on working dogs.
Journal of Comparative Physiology B.
Bruchim, Y., et al. (2017).
Heat stress and the canine nervous system.
Frontiers in Veterinary Science.
Kiyatkin, E. A. (2019).
Brain hyperthermia and behavioural inhibition.