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Dr. Coates is a veterinarian based in the other “Sunshine State” – that's Colorado to the rest of you – where she lives and plays with a varied range of animals. She shares her professional and personal experiences, Monday through Friday, here on petMD's blog, the Fully Vetted. Log in for your daily dose of her insight and wisdom.

 

SAD pets: Does 'Seasonal Affective Disorder' give your pet the blues?

October 25, 2007 / (3) comments


New research shows that even pets get the blues during that time of year when the Earth is tilted away from the sun’s direct intervention. The waning light of winter certainly yields more depressive incidents among the human population—why not our pets?

The study, however flawed, at least shows that people consider their pets to be depressed during these months. They report greater indolence, increased sleep time and less of an appetite. I question its merits only because true Seasonal Affective Disorder is difficult to establish among humans, let alone their pets. After all, pets may well rest more as all mother nature’s creatures tend to do when faced with a diminished opportunity for play or prey time.

Our anthropomorphic sensibilities clearly make way for our observation of quiet winter time as depression, when it might, in fact, be a mere storing of energy, by way of augmented fat reserves, for the busy months to come. Bears, whales and penguins do it, why not our pets, too?

More interesting, however, is the possibility that the sense we humans perceive as depression, even within our own selves, is heightened by our natural tendencies towards the same. This makes more sense for those living in Fairbanks, Norway or upper Minnesota than for folk like me living in winterless Miami.

It’s clear from a multitude of studies that melatonin and other dwindling-light-related hormones push us in the direction of quiet contemplation perhaps ill-suited to humanity. Why else the suicidal tendencies observed in Northern latitudes? Genetics? Perhaps it’s accountable for mental illness in some populations, but why then the cure with the influx of natural light after the same individuals move southwards?

Pets must surely feel the same as we do to some extent. They, too, are affected by many of the same mammalian hormones. Does that mean that pets are “happier” in southerly climes?

I don’t have an answer, but I do know that SAD exacts a decided toll on humans. It’s then reasonable to believe that pets whose breeds are more acclimated to equatorial regions might be more susceptible to the insinuation of this disorder. But who knows? IMO, studies in this vein only as good as the humans who rank their pets’ behavior in two different climactic zones over a period of years.

Hence, we may never know how many licks I takes to get to the center of a Tootsie Pop.

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COMMENTS (3)
1
by on 10/25/2007 08:03pm

Well, I have three cats. One has IBD/pancreatitis and another may have pancreatitis. When I had one of them in near the end of this last winter, I actually made a joke with the vet about my cats having SAD. Why? Because they frequently have flare ups in the winter months and rarely do in the summer. Now, some of them can be exlained (i.e. a cat eating local lake fish by accident, a change in food). But others are not.

I do find they are much more cuddly in the winter because in the evening or early morning before work there isn't much to see out the windows. Even during the day there isn't much activity outside to interest them. I do think they can get more bored in the winter, but play can help with that. Also, they seem to like cuddling.

2
by on 10/25/2007 11:55am

I'd say it's certainly within the realm of possibility. Carissa has an excellent point about pets reflecting their owners moods, though, and it's not like you can easily sit down and have a chat with a dog and find out what might be bothering it.

I do know that on grey, rainy days (like today) my dog does tend to sleep more! But then again, so do I. :)

3
by on 10/25/2007 10:34am

I have dysthymia and get a bit more depressed during January and February, which are the two bleak months in Buffalo (back home in Baltimore it was mostly just January), but I don't know whether that's SAD or not. Now I'm also curious... dogs can feel our tension/stress/etc. and it can affect their actions... for example your dog is meeting a strange dog and you are nervous about your dog's reaction, so you keep the leash very taught, which can have an effect on how your dog responds. Is there a possibility that dogs can read their owner's depressed state and react as such? Perhaps this is a stretch but just thought I'd bring it up anyway.

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About fully vetted

Patty Khuly, VMD, MBA

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Dr. Khuly is a former petMD blogger and small animal veterinarian in Miami, Florida, where she practices medicine at Sunset Animal Clinic and serves on the board of the South Florida Veterinary Medical Association. She is a graduate of Wellesley College, the University of Pennsylvania School of Veterinary Medicine, and The Wharton School of Business.

As a significant sideline, she writes...a lot. She authors pet health columns for USA Today, The Miami Herald and Vetstreet. She also writes a popular monthly column for Veterinary Practice News and serves as regular contributor to Veterinary Economics, The Bark, and the Veterinary News Network.

Dr. Khuly lives in South Miami with her brood of hens, goats, dogs, cats...and humans.

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