I would say go out more.
I think there’s some merit to this, I had blonde hair as a child and now when I go to the beach a lot during the summer is starts to lighten again.
If you don’t have any hair, it won’t change colour…
(It’s a joke, laugh)
Also, not for nothing, the human body changes daily. I’d recommend that you get used to it before you have an unhappy life pursuing battle against the inevitable.
Stop getting older. Besides that, not much of a chance I’m afraid.
Hair color changes with age. My mother in law and wife were both blond when they were kids, but their hair slowly turned browner with age. They both highlight their hair to split the difference.
We have two fairly young kids. Their hair is pretty light blond on the top layers, but their bottom layers are quite a bit darker. I suspect the biggest contributing factor beyond genetics is sunlight. Both of them spend a pretty good amount of time outdoors when the weather permits.
Dye and the right amount of UV light exposure.
Depends on the cause. Genetics/hormones, hard water, buildup, damage, all have different strategies.
