Given proper nutrition, exercise, and veterinary care, most whippets live for 12 to 15 years.[7] They are generally healthy, and are not prone to the frequent ear infections, skin allergies, or digestive problems that can afflict other breeds. Genetic eye defects, though quite rare, have been noted in the breed. Because of this, the American Whippet Club recommends that all breeders test for this defect in their breeding stock. Hip dysplasia is unknown in whippets. Undescended testicles are common in the breed.
The heart of a whippet is large and slow beating, often being arrhythmic or even intermittent when the animal is at rest. This sometimes causes concern to the owner, or to the vet not experienced with the breed. Whippets will, however, demonstrate a regular heartbeat during exercise. In a health survey conducted by The Kennel Club (UK) cardiac problems were shown to be the second leading cause of mortality in Whippets.[8] It is not clear, however, whether this is at all related to the breed's somewhat unusual heart function.
Especially the bolded part. I adored the time I spent this summer with Kerri's whippets... especially Bounce 
