How diet causes aging
Why the body ages
In addition, external influences can accelerate the aging of the organs. Overeating, harmful or toxic substances, e.g. alcohol and nicotine, too much UV radiation, but also emotional stress all contribute to premature aging. The following theories of aging are currently being discussed in science:
Cells cannot divide indefinitely. Their "expiry date" is recorded in the genetic make-up. Even when the genetic code is passed on during cell division, small errors can creep in over the course of a lifetime. This can cause cell damage that also affects organs.
Cell damage from oxygen radicals
Free oxygen radicals arise during the metabolism and can damage the cells and their genetic material. The formation of free radicals is promoted, for example, by an unhealthy diet, smoking, by strong UV radiation exposure, but also by chronic inflammatory processes. Normally, the organism can capture free radicals through special mechanisms and limit oxidative stress. In old age, however, these mechanisms work increasingly poorly.
Malfunctions due to harmful protein molecules
Proteins can form crosslinks with sugar or sugar compounds. This disrupts the original function of the protein. The pathological, age-related cross-linking of proteins can be involved in the development of metabolic disorders, the decrease in muscle mass, changes in connective tissue, Alzheimer's dementia or kidney diseases.
Malfunction of the endocrine system
Messenger substances - hormones - control important body functions around the clock. Your control center in the brain - the hypothalamus - loses its ability to properly regulate hormones as you age, and fewer hormones are excreted.
Aging research assumes that different mechanisms for aging influence each other - just as all biological processes in the body are interconnected.
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