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Christy Callahan
Christy Callahan has been researching and writing in the integrative health care field for over five years, focusing on neuro-endocrinology. She has a Bachelor of Science degree in biology, earned credits toward a licensure in traditional Chinese medicine and is a certified Pilates and sport yoga instructor.
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By Christy Callahan
![Close-up of person in bathing suit with goosebumps experiencing chills after a swimming workout.](https://img.livestrong.com/375/cme-data/getty%2Fb7e963870e0742c483edb373ea054964.jpg)
Fitness