Introduction about the topic

What is aging?

Theories for explaining the process of aging

History: when did formal studies about aging started?

Optimal aging

Signs of successful aging

About life extension sciences

How can quality of life can be improved?

How to extend life period?

Conclusion

In this topic ‘AGING’ we will know that what

aging actually is and how it occurs. A little bit

of history. Does it occurs in all living beings or

all cells of a multicellular being or just in

particular cells. We will also study that how it

proceeds on or how can we explain the fact

aging. How the aging is optimal? Further more

I'm going to tell that how aging can be slowed

down. And about the life extension and life

extension sciences. At the end we will look

down upon the strategies to lengthen the

cellular life.

The gradual negative

physiological activity of

living cells in an organism

over a period of time is

designated as aging.

Stochastic

Non-stochastic/Biological

Physiological

Programmed Aging Theory

Genetic Aging Theory

Autoimmune Theory

Life span and the death are all programmed

A biological clock controls cell behavior and lifespan

There are specific number of meiosis for every kind of cell

Some of the cells do not divide and just age

life span of a cell or organism is genetically determined

The number of repeats in a telomere determines the maximum life span of a cell, since each time a cell divides, multiple repeats are lost. Once telomeres have been reduced to a certain size, the cell reaches a crisis point and is prevented from dividing further

Changes in immune system are

responsible for the effects of aging

The system that

produces antibodies loses its ability to

distinguish between “self” and foreign

proteins.

Free Radical Theory

Somatic Mutation Theory

Wear And Tear Theory

Cells are damaged by free radicals

They oxidize DNA

organisms age because cells

accumulate free radical damage over time

Mutations are those inheritable changes

that occur in the cellular DNA.

Chromosomes are damaged or the

mutation occurs due to radiation or much

sun exposure

Any change in genetic complement of

somatic cells leads to aging

animals and cells, like machines, simply

wear out

however, unlike machines, have some

ability to repair themselves

waste products accumulate within cells

and interfere with function

Activity theory

Continuity theory

Disengagement theory

For successful ageing the activities should

be changed

Activities of an individual effect the aging

process

Ones behavior also determines the extent

and speed of aging

Thoughts are very important

Peoples ways of engaging with a society

effects aging

A lonely person will age faster than others

The first formal studies of ageing appear

to be those of Muhammad ibn Yusuf al-

harawi (1582) in his book entitled Ainul

Hayat

Optimal aging refers to the fact that if one

is aging properly or not

According to the age of the person

According to physical health

No physical disability over the age of 75 as rated by a physician;

Good subjective health assessment (i.e. good self-ratings of one's health);

Length of undisabled life; Good mental health Objective social support Self-rated life satisfaction in eight domains, namely

marriage, income-related work, children, friendship and social contacts, hobbies, community service activities, religion and recreation/sports.

Life extension science, also known as anti-aging medicine, indefinite life extension, experimental gerontology, and biomedical gerontology

the scientific study of the biological, psychological, and sociological phenomena associated with old age and aging is called gerontology

It also includes how to prevent various aging issues

By eating good food

Living happily

Making social connections

Fooling genes

Aging is the accumulation of changes in a

person over time. Also it’s a natural

process it cannot be prevented but can be

slowed down by taking care of oneself.

There are a lot of theories being proposed

to explain the process of aging. But none

of them can completely explain the

process.