Can senior horses overheat faster than younger horses? Research suggests they can. In one study, older horses reached a core temperature of 104°F in approximately 17 minutes—nearly twice as fast as younger horses performing the same workload. In this video, we explain why senior horses may struggle to regulate their body temperature during exercise, how age can affect cardiovascular effort and plasma volume, and why sweating does not always prevent dangerous overheating. You will also learn how to recognize the warning signs of heat stress in horses, safely cool an overheated horse, plan summer exercise, and adjust your senior horse’s workload during hot or humid weather. Warning signs may include rapid or labored breathing, an unusually elevated heart rate, excessive or reduced sweating, weakness, poor coordination, confusion, unusual fatigue, and slow recovery after exercise. Heat illness can become an emergency, so contact your veterinarian immediately if your horse shows persistent distress or fails to cool down. This video is for educational purposes only and does not replace veterinary advice. Always consult your veterinarian about your horse’s health, fitness, hydration, medication, electrolyte needs, and ability to exercise safely. CHAPTERS 00:00 Can senior horses overheat faster? 01:05 Why exercise raises body temperature 02:15 The senior-horse heat study 03:05 Heart rate and physical workload 04:15 Plasma volume and sweating 05:20 Why humidity increases the danger 05:30 Risk factors for older horses 06:30 Warning signs of heat stress 07:00 When overheating becomes an emergency 08:00 How to cool a hot horse safely 08:31 Cold water and scraping myths 09:23 Water, electrolytes, and hydration 11:40 Exercising senior horses in summer Have you noticed your older horse becoming hotter, breathing harder, or taking longer to recover during summer exercise? Share your experience in the comments. Christa Lesté-Lasserre, “Research Shows Senior Horses Heat Up Faster During Exercise,” My Senior Horse, August 3, 2026. https://myseniorhorse.com/management-care/research-shows-senior-horses-heat-up-faster-during-exercise/ K. H. McKeever, T. L. Eaton, S. Geiser, C. F. Kearns, and R. A. Lehnhard, “Age Related Decreases in Thermoregulation and Cardiovascular Function in Horses,” Equine Veterinary Journal, Supplement 38 (2011): 220–227. https://doi.org/10.1111/j.2042-3306.2010.00259.x PubMed: https://pubmed.ncbi.nlm.nih.gov/21059010/ University of Minnesota Extension, “Caring for Horses During Hot Weather.” https://extension.umn.edu/horse-care-and-management/caring-horses-during-hot-weather Jason L. Turner, “Help Your Horse Handle Heat Stress,” Guide B-711, New Mexico State University, revised August 2025. https://pubs.nmsu.edu/_b/B711/ H. Kang, R. R. Zsoldos, A. Sole-Guitart, E. Narayan, A. J. Cawdell-Smith, and J. B. Gaughan, “Heat Stress in Horses: A Literature Review,” International Journal of Biometeorology 67 (2023): 957–973. https://doi.org/10.1007/s00484-023-02467-7 Y. Takahashi, H. Ohmura, K. Mukai, T. Shiose, and T. Takahashi, “A Comparison of Five Cooling Methods in Hot and Humid Environments in Thoroughbred Horses,” Journal of Equine Veterinary Science 91 (2020): 103130. https://doi.org/10.1016/j.jevs.2020.103130 #SeniorHorse #HorseCare #EquineHealth This video is for educational purposes and constitutes Fair Use under Section 107 of the US Copyright Act of 1976. Allowance is made for “Fair Use” for purposes of education, research, criticism, comment, and news reporting. This video is fully transformative and created in accordance with YouTube’s Content Reuse Policy under the Content Reuse Act. It includes original narration, commentary, educational context, visual edits, and added value through storytelling and analysis. No content is simply re-uploaded. #horse #horses #horsecare #horsenews #equestrian
