| http://www.w3.org/ns/prov#value | - However, some pathologies, such as sinusitis, remain relatively constant with age, while others, such as asthma, decline with age.Several hypotheses have been proposed to explain biochemical causes of aging, including mitochondrial abnormalities, reactive oxygen species (ROS) production (or the free radical theory of aging), the shortening of telomerase, DNA methylation, and epigenetics [10???14].
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