A recent study shows this holds true for dogs as well. Less stressed dogs live longer.
It's easier said than done, but controlling your stress when your dog is diagnosed with a disease like cancer is critical!
"It is widely accepted that psychological stress and mental illness can compromise the function of the immune system. Clinical and epidemiological studies on humans recognized that specific psychosocial factors, such as stress, chronic depression and lack of social support are risk factors for the development and progression of cancer.
Our results are aligned with the evidence from human research, indicating that dogs with cancer are significantly more likely to have shown signs of stress compared to the control dogs during their life."