Lets start with seeing the definition of Fitness:
3. Biologyan organism’s ability to survive and reproduce in a particular environment.plural noun: fitnesses“if sharp teeth increase fitness, then genes causing teeth to be sharp will increase in frequency”
After looking closely at the definition there are things that stand out:
By only looking at those words you can see that fitness makes you the best version of you.
What I see when I look at those words is :
But remember it is not about being the best ; it is about being your best!