What is the life expectancy of an Akita?

I'm curious, could you tell me more about the life expectancy of an Akita dog breed? I've heard they are quite hardy and resilient, but I'm not sure what the average lifespan is for this breed. Is it longer or shorter than other similar-sized dogs? And are there any factors that can influence their longevity, such as diet, exercise, or genetics? I'm eager to learn more about this fascinating breed and how to ensure my potential Akita companion lives a long and healthy life.