More leaf fingers a sign of health?

I've always wondered what if anything the number of leaves say about a cannabis grow. Is it simply a by-product of genetics, simply a reaction to health or some mix of both or maybe neither?

I've tried looking it up all over but didn't have much luck.

No but health affects everything so although not linked indirectly it will have an effect.

Environment and genetics are the two main factors in leaf morphology, weed is a lobed pinnate leaf or somthing like that.

Some leaves and stoma are very in tune with their immediate environment and some arent, weed is in the first group, this means the leaf senses and reacts quickly to changes/stresses.

Not much of an answer but best i could think of to describe the situation a little