If you want these effects just in general, where the “diamond_axe” is, type in diamond_helmet, and it will come as a diamond helmet, and when worn, all effect will occur at any time. You can change it to any item, as long as you put it in where I said to, with _ instead of spaces. You could even make it a flower!

https://www.planetminecraft.com/blog/how-to-get-infinate-health-in-vanilla-minecraft/