What do free radicals do to cells?

• A. Stabilize and strengthen them
• B. Oxidize and destabilize them
• C. Repair and rejuvenate them
• D. Protect them from damage

Answer: (B)

Free radicals are highly reactive molecules that contain unpaired electrons. As a result of this instability, they can engage in a series of chemical reactions that lead to the oxidation of various cellular components, including proteins, lipids, and DNA. This oxidative stress can destabilize cells and disrupt their normal function, ultimately contributing to various forms of cellular damage and aging. The process of oxidation can lead to inflammation and has been implicated in numerous diseases, including cancer and degenerative conditions.

Understanding the role of free radicals is crucial, particularly in the context of skin health, as they can accelerate the aging process and diminish the skin's ability to repair and rejuvenate itself. While other options suggest positive effects such as stabilization, repair, or protection, free radicals primarily cause damage through oxidative processes, which is why the correct characterization is that they oxidize and destabilize cells.