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  2. Lipid peroxidation - Wikipedia

    en.wikipedia.org/wiki/Lipid_peroxidation

    Additionally, enzymes including superoxide dismutase, catalase, and peroxidase contribute to the oxidation response by reducing the presence of hydrogen peroxide, which is a prevalent precursor of the hydroxyl radical (OH•). As an example, vitamin E can donate a hydrogen atom to the lipid hydroperoxyl radical (LOO•) to form a vitamin E ...

  3. Free-radical theory of aging - Wikipedia

    en.wikipedia.org/wiki/Free-radical_theory_of_aging

    The free radical theory of aging states that organisms age because cells accumulate free radical damage over time. [1] A free radical is any atom or molecule that has a single unpaired electron in an outer shell. [2] While a few free radicals such as melanin are not chemically reactive, most biologically relevant free radicals are highly ...

  4. Mitochondrial theory of ageing - Wikipedia

    en.wikipedia.org/wiki/Mitochondrial_theory_of_ageing

    The mitochondrial theory of ageing has two varieties: free radical and non-free radical. The first is one of the variants of the free radical theory of ageing. It was formulated by J. Miquel and colleagues in 1980 [1] and was developed in the works of Linnane and coworkers (1989). [2] The second was proposed by A. N. Lobachev in 1978. [3]

  5. This Is What Actually Happens To Body Fat When You Lose ... - AOL

    www.aol.com/lifestyle/actually-happens-body-fat...

    Weight loss doctors explain how fat leaves the body through sweat, breath, and urine. Plus, tips to optimize fat loss, and frequently asked fat loss questions.

  6. How to Reduce These 7 Causes of Belly Fat in 2025 - AOL

    www.aol.com/reduce-7-causes-belly-fat-115700284.html

    3. Sleep Deprivation. There is a link between sleep loss and weight gain. Research shows that people who routinely don’t get enough sleep tend to eat higher-calorie and higher-fat diets.. Not ...

  7. Oxidative phosphorylation - Wikipedia

    en.wikipedia.org/wiki/Oxidative_phosphorylation

    Oxidative phosphorylation in the eukaryotic mitochondrion is the best-understood example of this process. The mitochondrion is present in almost all eukaryotes, with the exception of anaerobic protozoa such as Trichomonas vaginalis that instead reduce protons to hydrogen in a remnant mitochondrion called a hydrogenosome .

  8. Oxidative stress - Wikipedia

    en.wikipedia.org/wiki/Oxidative_stress

    Oxidative stress mechanisms in tissue injury. Free radical toxicity induced by xenobiotics and the subsequent detoxification by cellular enzymes (termination).. Oxidative stress reflects an imbalance between the systemic manifestation of reactive oxygen species and a biological system's ability to readily detoxify the reactive intermediates or to repair the resulting damage. [1]

  9. Not all belly fat is created equal. Here are the different ...

    www.aol.com/lifestyle/not-belly-fat-created...

    You can’t target fat loss from a specific area like your midsection, and even abdominal exercises alone won’t help you get rid of belly fat. Instead, focusing on overall weight loss and ...