"My greatest strength would be my patience. I can keep my cool through any situation and find a release for a stressful situation later. My stress release is reading outside in the fresh air."
"One of my strengths is my ability to empathize and express my understanding to my patients makes them feel more comfortable talking to me."
This question can be difficult for some to answer if they aren't comfortable and confident in bragging about themselves. The interview is the time and the place to show them what you're all about and why they want to hire you. Having a hard time determining what strength you should answer with? Try making a list of your skills dividing them into three categories: Your knowledge based skills, transferrable skills and your personal traits.