Dog breeds and separation anxiety: what the research can (and can't) tell you
Breeds do differ — a study of 13,700 dogs found large breed differences in anxiety traits. But no reliable 'worst breed' list exists, and your individual dog's history matters more. An honest look.
“Which breed can be left alone?” is one of the most searched questions about dogs. The honest answer is more interesting — and more useful — than any top-ten list.
Breeds do differ
But a breed isn’t a verdict
Those same studies point to non-genetic factors too:
- Early life: fearful dogs — more likely to have separation problems — had fewer socialization experiences and poorer maternal care as puppies (Tiira & Lohi, 2015).
- Exercise: dogs with separation anxiety got less daily exercise in one survey (Tiira & Lohi, 2015) (a correlation, not proof of cause).
- Routine changes: dogs whose time alone dropped the most during lockdown were most likely to develop new problems when owners went back out (Harvey et al., 2022).
- Household: dogs from single-adult homes were about 2.5 times as likely to have separation anxiety in one study (Flannigan & Dodman, 2001) — a pattern, not a verdict on single owners.
No breed should routinely be alone all day
Whatever the breed, UK welfare organizations advise that dogs shouldn’t routinely be left alone for more than about four hours at a time, and puppies much less (PDSA; RSPCA).
What to do with this
- Choosing a dog? Meet the individual, ask about their history, and plan to teach alone-time gradually from day one.
- Already have a dog who struggles? Their breed doesn’t change the plan: measure their number, stay below it, grow it slowly.
Common questions
Which dog breed has the worst separation anxiety?
There's no reliable single answer. Research shows breeds differ in how common separation-related behavior is, pointing to a genetic contribution, but popular 'worst breeds' lists aren't usually based on that research. Individual temperament, early life and routine changes matter a great deal.
Which dogs can be left alone for 8 hours?
None should routinely be. UK welfare organizations advise that dogs shouldn't routinely be left alone for more than about four hours at a time, whatever the breed.
Which dog breeds have low separation anxiety?
Breed averages exist, but the spread within every breed is wide. If you're choosing a dog, meet the individual, ask about their history, and plan to teach alone-time gradually whatever the breed.
Stop guessing how long to leave your dog.
An 82-page illustrated guide, a fillable workbook, an Excel tracker that tells you what to do after every session, and a one-page card for the fridge. 111 cited sources.