Vapaajaksonit

Vapaajaksonit, also known as free radicals, are atoms, molecules, or ions that have at least one unpaired valence electron. This unpaired electron makes them highly reactive and unstable. They readily seek out other molecules to interact with, often by donating or accepting an electron, which can lead to a chain reaction.

In biological systems, vapaajaksonit are produced naturally through metabolic processes, such as cellular respiration. They can also be generated by external factors like radiation (UV light, X-rays), pollution, and certain chemicals. While vapaajaksonit play a role in some essential bodily functions, such as immune responses, their overproduction can cause damage to cellular components like DNA, proteins, and lipids. This damage is often referred to as oxidative stress.

The body has defense mechanisms against vapaajaksonit in the form of antioxidants. Antioxidants are molecules that can neutralize vapaajaksonit by donating an electron without becoming unstable themselves. Dietary sources of antioxidants include vitamins C and E, beta-carotene, and selenium. Maintaining a balance between vapaajaksoni production and antioxidant defense is crucial for cellular health and overall well-being. Imbalances can contribute to aging and the development of various diseases.