And by focusing attention on healthy ways of living, the concept of wellness can have a beneficial impact on the ways in which people face the challenges of daily life.
主干：the concept...can have a
句首by引导的介词短语表示方法、手段。have a on...对......有有益的影响。in which引导定语从句修饰the ways。
译文：通过关注健康的生活方式，健康的历年就能对人们面对日常生活的挑战的方法产生有利的影响。