Car emissions can turn good cholesterol bad
In the study, mice were exposed to diesel exhaust for two weeks "at a particulate mass concentration within the range of what mine workers usually are exposed to" (according to UCLA), which, not surprisingly, had a negative effect on the bloodstream. First, the air pollution altered the HDL (High-Density Lipoprotein, a.k.a. "good cholesterol") to the point that the positive properties of the protein were reduced and could lead to high levels of LDL (Low-Density Lipoprotein, "bad cholesterol") and hardening of the arteries. While this seems like a study related to extreme pollution, it draws yet another linkage between our environments and our health.
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