I think that they race in the dark under flood light when it's cooler anyway. It may also be a different type of heat, i.e. drier. Regardless, they are being forced to race whereas in the wild if they need to run they would do; otherwise they rest under trees, usually with one hoof rested standing head to tail in order to get rid of flies
![Roll Eyes ::)](https://www.menopausematters.co.uk/forum/Smileys/extended/rolleyes.gif)
The Arabs in particular value their Stallions, Saluki and birds of prey ........ think grey horses with flowing manes and tails
![Kiss :-*](https://www.menopausematters.co.uk/forum/Smileys/extended/kiss.gif)