Final answer:
Clients with spasmodic torticollis or cervical dystonia should avoid adding volume at the neck.
Step-by-step explanation:
In order to preserve a more balanced and attractive appearance, clients with short or thick necks might wish to stay away from adding too much volume there. Excessive volume, whether from clothes or hairstyles, can draw attention to the thickness or shortness of the neck.
Alternatively, it may be more flattering to choose haircuts that lengthen the neck or clothes with illusionary lengthened necklines. For example, a V-neck or a scoop neckline can make the neck appear longer.
Speaking with a hairstylist or other fashion expert can help clients improve their overall appearance by offering tailored advise on cuts and outfit selections that accentuate different neck measurements.