The Emerging Risks Associated with Keyless Push Button Ignitions on Automobiles Keyless ignition systems in automobiles have been around since the mid-1990s. But as their popularity has grown, presumably for their convenience and ease, so have the inherent and substantial safety risks associated with these systems.
Bleeding is a common condition in horses resulting from normal training, racing or performing, and always has been. Most types of horse are susceptible to nose and lung bleeding, Thoroughbred, Standard bred, Quarter horse, Thoroughbred cross and Arab horses.
1 Parasites - My husband's horse has neck threadworms that have travelled to the eyes. This horse sometimes yawns more often when the parasites are active in the spring. We have no Equine Parasites scientific proof, but this has been our observation.  Eating stemmy hay or soaked pellets seems to cause some horses to yawn.