We are saying your body selects a walking speed that is best for you based on the health of all your body systems.

我们要说的是身体的健康程度决定了最舒适的步行速度。

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Health problems include immediate skin or eye irritation, allergic sensitization, cancer, serious impairment of specific body organs and systems, and reproductive problems.

健康问题包括即可皮肤或眼部刺激、过敏、癌症、严重的身体器官和系统受损以及生殖问题。

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In addition to family practice, internal medicine, and specialties for specific body systems, it includes research, public health, epidemiology, and pharmacology.

除了家庭医学、内科医学以及特定身体系统的专科，还包括医学研究、公共卫生、流行病学与药理学。

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