Unsaturated fatty acids is easy to be oxidation, creating great deal of oxides, per-oxide-hydrogens, and then decompose into aldehude, aldehyde acid, mellow, hydrocarbon, ketone compounds.

• 有人为了清除狐臭，就将腋窝大汗腺切除，或用激光加以破坏。这是不可取的。因为汗腺是人体正常新陈代谢的一个途径。