史密斯出生于苏格兰，并在那里接受了教育。 在19世纪40年代初，史密斯来到曼彻斯特，并成为一名从事空气污染研究的专家。
Scottish born and educated, Smith arrived in Manchester in the early 1840s and became an expert on atmospheric pollution.
研究表明，空气污染对大脑中的白质有很大影响，但对灰质没有影响。
Studies have shown that air pollution has a great effect on the white matter in the brain, but not the grey matter.
过去对于小白鼠的研究中发现空气污染对于胰岛素的抵抗性有很大关系，这是第二类糖尿病的主要发病因素。
Previous studies in mice have suggested that air pollution is associated with insulin resistance, a precursor condition to type 2 diabetes.
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