Cortney Calvig, 22 of Toluca Lake, prepares her horse, named Chutterfly, for the stable after a morning ride at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
A horse enjoys a bath after a morning ride at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
Horses get plenty of water after a morning ride and a bath at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
Leah Gunn, 24 of Los Angeles, bathes her horse Dancer, a Quarter horse/Palomino cross, after a morning ride at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
During excessive heat, horses are kept in their stables with running fans, background, at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018.According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
David Jennings, 34 of Los Angeles, bathes Bird, a retired thoroughbred horse, after a morning ride at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
After a morning ride, horses are led for baths at Morning Mist Farms, at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
Misters and fans are used to keep horses cool at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
Large industrial fans circulate the air during a heatwave at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)
Roof misters keep horses cool during heatwaves at the L.A. Equestrian Center in Burbank on Friday, July 6, 2018. According to trainer David Josiah, when there’s excessive heat, horses should be exercised earlier in the morning, take more frequent walking breaks while riding, and no drinking until the horse cools down. Horses also get electrolytes and their water intake is monitored. (Raul Roa / Staff Photographer)