When do puppies calm down?

In a 2020 study in Frontiers in Veterinary Science, Lisa Wallis and colleagues analyzed owner ratings for 1,207 dogs aged one year and older and found that activity and excitability fell in a strong, steady line with age. The greatest drop came between early adulthood, 1 to 3 years, and middle age, 3 to 6. A 2021 review by Naomi Harvey sums up the same pattern: excitability peaks in puppyhood and declines across the lifespan.

So the honest answer is a little at a time, for years. Expect change over seasons rather than weeks, with no switch flipped on a birthday. The same 2020 study found that owners rated responsiveness to training highest in dogs aged 3 to 6. None of this means a young dog is misbehaving on purpose; it is doing what young dogs do, and the work in the meantime is shaping where all that energy goes.

The AKC says a dog's breed heavily influences how much activity it needs, and that high-energy breeds need far more exercise than lower-energy ones. A dog from a breed developed for long working days may still want a great deal at four or five, while a dog from a lower-energy breed can seem settled much earlier. For those busy breeds, calm is less about reaching an age and more about meeting the dog's needs every day and teaching it to switch off.

Timing by breed is less clear than owners are often told. Harvey's review calls the age of behavioral maturity in dogs a considerably under-researched question, suspected to differ by breed, and Wallis's 2020 study compared only purebred with mixed-breed dogs rather than breed groups. Size matters for the body, too: the AKC notes that large and giant breeds keep developing to 18 to 24 months, so a big adolescent's energy sits in a body that is still growing.

Tiny Tails Puppy School, for pups 8 to 16 weeks, runs 4, 6 or 8 weeks and focuses on life skills, confidence, socialization and heading off common puppy problems; our puppy classes page has the detail. From 4 months, Bright Beginnings covers manners, focus and impulse control, and Brave & Balanced supports a pup that needs confidence. Gabriella Pope, our Director of Training & Canine Behaviorist, leads the programs with fear- and force-free methods, and sessions start from $94.

For the adolescent stretch, Calm & Connected works on impulse control and real-world reliability, and a Dogtown Academy half day at $69 adds a training session to a day of play and enrichment. Cape Ann gives a teenage dog plenty of tests: Gloucester's beaches reopen to dogs from October 1, and St. Peter's Fiesta in late June and the July 3 fireworks bring crowds and noise. Send the training form with your dog's age, and we reply within one hour on business days.