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Cover Story

When Heat Becomes Dangerous for Horses

How horses maintain their body temperature and how to respond when heat puts those systems under strain.

Also in this Issue

Stopping Disease Before it Spreads
Caring for Horses When Disaster Strikes
Why the Equine Gastrointestinal Microbiome Matters
Lessons Learned From a Rare Cause of Equine Headshaking
Feeding Horses During Travel
Keeping Horses Sound in Their Teens
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EHV-1: Understanding the Disease and Reducing the Risk

3 Nevada Horses Euthanized After Testing Positive for EIA

5 Utah Horses Test Positive for WNV

Wisconsin Horse Tests Positive for EHV-4

Managing Asthma in Horses

Feeding Horses: Addressing Anhidrosis

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Equine Vaccinations for Year-Round Protection

August 18, 2026

Update: EPM in Horses

August 4, 2026

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Dealing With Equine Colic: Here are 33 Do’s and Don’ts

Inside the Equine Gut Microbiome

Parasite Control for Today’s Horses

Managing Your Performance Horse’s Joints

Equine Asthma

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Signs of Dehydration in Horses

August 24, 2026

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Laurent Couëtil, DVM, Dipl. ACVIM

Laurent Couëtil, DVM, Dipl. ACVIM, is an associate professor of large animal medicine and director of the Equine Sports Medicine Center at Purdue University’s School of Veterinary Medicine.

Articles by: Laurent Couëtil, DVM, Dipl. ACVIM

Poor Air Quality and Lung Damage in Horses

Laurent Couëtil, DVM, Dipl. ACVIM September 24, 2025

One expert explains how exposure to dust can negatively affect equine respiratory health and how owners can reduce their horses’ risk.

Inflammatory Airway Disease in Horses: Causes and Treatments

Laurent Couëtil, DVM, Dipl. ACVIM March 31, 2014

Dr. Laurent Couetil talks about the environmental factors that impact horses with heaves and ways to treat the disease.

Treating Lower Respiratory Diseases

Laurent Couëtil, DVM, Dipl. ACVIM November 15, 2011

Evidence-based approaches to treatment of airway disease in horses such as heaves (recurrent airway obstruction or RAO) and inflammatory airway disease (IAD), with Dr. Laurent Couetil of Purdue University.