Lipid peroxides are implicated in the pathophysiology of several diseases. They are involved in the progression of atherosclerosis by oxidizing low-density lipoproteins, which can lead to plaque formation in arteries. They also contribute to neurodegenerative diseases like Alzheimer's and Parkinson's by inducing neuronal cell death. Furthermore, lipid peroxides play a role in liver diseases, chronic inflammation, and cancer.