You've probably noticed that lots of big dog breeds don't live for many years - but why?
In fact, their size and genetics make them strong and healthy for a few years, but they also tend to grow older faster.
Let's find out more about how it works.
It's all about genetics
Larger dogs often have different genetics compared to smaller ones.
These genetics can make them more prone to certain health problems, like joint issues and heart conditions, which can shorten their lives.
They grow really fast
Big dogs grow faster when they are puppies.
This rapid growth can put extra stress on their bodies and bones, making them more susceptible to injuries and health issues later in life.
Their hearts have to work harder
The hearts of big dogs need to work harder to pump blood to their large bodies. This extra strain can lead to heart problems as they age.
Their metabolism also matters
Larger dogs tend to have a slower metabolism. This means they may be more prone to obesity, which can lead to various health issues and a shorter lifespan.
Dogs often have cancer as well
Some studies suggest that bigger dogs have a higher risk of certain types of cancer, which can be life-threatening.
Some breeds are just doomed
Certain large dog breeds have their own specific health problems due to their genetics.
For example, Great Danes are prone to bloat, a potentially deadly condition.
As you may see, it's pretty hard for their bodies to maintain them healthy and full of energy for many years.
Meanwhile, these dogs still can be amazing friends for their owners, and though they live for not so ong, you still have plenty of time to create lots of beautiful memories together.