In her final year at Carnegie Mellon University, Ms. Collier, a dual major in material science and biomedical engineering, teamed with a group of peers on a class project to invent a product for the medical world.

She got that A — and a lot more than she bargained for.

That class project changed her life and her career trajectory. After inventing a shirt that promotes better posture to reduce back pain, Ms. Collier spurned a doctoral program in biomedical engineering at Johns Hopkins University to turn her invention into a business.

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