Very good mornings tend to be more typically done with a barbell but are noticeably more comfortable and every little bit as helpful any time you do it with a single dumbbell. You can also area the dumbbell around the back within your neck in this work out. (According to https://back-exercises-with-dumbb22566.blue-blogs.com/40406850/hammer-strength-dumbbells-can-be-fun-for-anyone