How much exercise does a dog need per day?

Until about 1 year of age (longer in large and giant breeds), a puppy's bone growth plates are still open — that's where the bone grows in length. High-impact or overly long exercise during this phase overloads those still-soft cartilage areas, increasing the risk of orthopedic injury. That's why the recommendation is to limit structured exercise (leash-guided) to about 5 minutes per month of age, up to twice a day, regardless of breed.

Genetic factors are the main cause of dysplasia, but excessive high-impact exercise (long runs, jumping, repeated stairs, high-impact sports) during the growth phase is considered an aggravating environmental factor in predisposed breeds, especially large and giant ones. Keeping structured exercise within the age-recommended limits helps reduce this additional risk.

Under-exercised dogs often show excess energy at home, destructive behavior (chewing furniture, digging), excessive barking, restlessness, difficulty settling down, and, over time, weight gain. High- and very-high-energy breeds that don't get enough physical and mental stimulation frequently develop these behaviors as a way to burn off pent-up energy.

Heavy panting that doesn't normalize quickly after resting, refusing to keep walking, limping, lying down mid-walk, very pale or bluish gums, and extreme fatigue the next day are warning signs. In puppies, limping after intense play is a reason to reduce intensity and monitor. At any age, persistent signs of exhaustion warrant a veterinary evaluation.

Yes. Breeds like the French Bulldog, English Bulldog, Pug, and Shih Tzu have narrower airways, which makes it harder to dissipate heat through panting and greatly increases the risk of heat stroke and respiratory distress during exercise. For these dogs, favor shorter sessions, cooler times of day, avoid excessive heat and humidity, and stop the activity at the first sign of noisy or heavy breathing.