Anti-Ageing Theory
Looking
and feeling young has never been so easy! Here are few theories explained which
defines aging theories and why we age-
1) THE THYMIC THEORY OF AGING
The
thymus is a gland needed for normal immune function It secretes hormones called
humoral factors. These hormones help to develop the immune system. The thymus
is responsible for the production of T-lymphocytes (T cells), which are
critical cells of the immune system. Thyme hormones may also play a key role in
stimulating and controlling the production of neurotransmitters, and endocrine
system hormones, which means they may be key regulators of aging and
responsible for immunity.
2) CALORIE
RESTRICTION ANTI-AGING THEORY
Calorie restriction (CR) or energy restriction is a dietary routine wherein there is a reduced intake of calories without causing malnutrition or any other nutritional deficiency. It can improve longevity and health in model organisms. Studies in humans also demonstrate reduced risk factors for major diseases when they are on calorie restriction diet. Calorie restrictions retards several aspects of the aging in mammals, including mortality, tumorigenesis, physiological decline, extend life, and helps delay the onset of disease as well.
3) PROGRAMMED THEORY OF AGING
Calorie restriction (CR) or energy restriction is a dietary routine wherein there is a reduced intake of calories without causing malnutrition or any other nutritional deficiency. It can improve longevity and health in model organisms. Studies in humans also demonstrate reduced risk factors for major diseases when they are on calorie restriction diet. Calorie restrictions retards several aspects of the aging in mammals, including mortality, tumorigenesis, physiological decline, extend life, and helps delay the onset of disease as well.
3) PROGRAMMED THEORY OF AGING
Programmed
theory asserts that the human body is designed to age and there is a certain
biological timeline that our bodies follow. Programmed Longevity: Aging
is caused by certain genes switching on and off over time.
4) CROSS-LINKING THEORY OF AGING
With
age, proteins, DNA and other structural molecules develop abnormal bonds or
cross-links to one another. These abnormal bonds decrease the mobility or
elasticity of proteins. These damaged proteins, accumulate in the cells
and create problems. Cross-linking of the skin protein, collagen, has been
shown to be responsible for wrinkling and other age-related changes in
skin. Cross-linking of proteins in the lens of the eye play a major role
in cataract formation. Cross-linking of proteins in the walls of arteries
or the filtering systems of the kidney account for at least some of the
atherosclerosis (once called hardening of the arteries) and age-related decline
in kidney function observed in older adults.
5) DNA/RNA DAMAGE
5) DNA/RNA DAMAGE
The most of anti-aging theories demonstrate
that DNA damage is central in aging processes. Decay of the integrity of
chromosomal DNA will cause a loss of function.
DNA damage refers to chemical changes in the structure of DNA molecule, producing structural abnormalities causing dysfunction of DNA. Mutations are changes in the polynucleotide sequence (deleted, substituted, added, and rearranged). Both interfere with gene expression, which is proposed as possible mechanism of aging and much degenerative disease.
DNA damage refers to chemical changes in the structure of DNA molecule, producing structural abnormalities causing dysfunction of DNA. Mutations are changes in the polynucleotide sequence (deleted, substituted, added, and rearranged). Both interfere with gene expression, which is proposed as possible mechanism of aging and much degenerative disease.
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