Dogs & Human Health Benefits Reduce stress and anxiety, lowering blood pressure. Help people with PTSD, depression, and autism as therapy animals. Encourage exercise and social interaction.03332874135
Dog Lifespan & Aging
Small breeds (Chihuahuas, Dachshunds) can live 15–20 years.

Large breeds (Great Danes, Mastiffs) have shorter lifespans, around 7–10 years.
Proper diet, exercise, and veterinary care can extend a dog's lifespanCommunication & Body Language
Tail Wagging:
Fast wag = excitement
Slow wag = uncertainty
Tail tucked = fear or submission