Please read about Physical Levels and Removing them.

[Zkieve]

While having 174 Vit may not decrease the damage you take by much, but it still inceases your HP more than having just 100 Vit. Also, It makes you a better Armorer, Carpenter, and Tanner, as all their main hands use Vit.

I just put VIT as an example , since is the only proven stat cap along with mnd based on hp/mp.How much does stats really help DoH is debatable, i been leveling bunch of crafts with stats only on vit and str.personally , i see no difference.
hard to say to be honest.