To reduce strain on the index finger and thumb while cutting hair, it is important to:

Palm the shears is the best choice to reduce strain on the index finger and thumb while cutting hair. By using the palm technique, the stylist holds the shears in a manner that allows the palms to support the weight of the scissors rather than relying solely on the fingers for grip strength. This distributes the pressure more evenly and minimizes fatigue in the fingers, making it more comfortable to work for extended periods. This technique is beneficial in maintaining precision and control while also promoting proper ergonomics.

Working quickly, closing fingers, and cutting vertically may not provide the same relief from strain on the fingers. In fact, working rapidly can lead to mistakes and increase tension in the hands, while closing the fingers tightens the grip and can increase fatigue. Cutting vertically does not inherently affect the strain on the fingers and may not address the ergonomic concerns present while using scissors. Therefore, palm the shears is the most effective method for reducing finger strain.