Ageing in the context of "Old age"

Labour economics is the subfield of economics concerned with the study of labour as an input to economic production. Broadly, it surveys labor markets and the ecomic decisions of agents participating in such markets. Topics of study include the labour supply of workers and how it is affected by variables such as age, education, gender and childbearing, as well as the labour demand by firms searching for different forms of labor as an input in the production of goods and services. In addition, labour economics studies, amognst others, phenomena such as schooling, human capital, inequality, unemployment, trade unions, discrimination, technological change, and public policies related to labor markets, such as unemployment benefits, pensions and health care.

Intersectionality is an analytical framework for understanding how groups' and individuals' social and political identities result in unique combinations of discrimination and privilege. Examples of these intersecting and overlapping factors include gender, caste, sex, race, ethnicity, class, sexuality, religion, disability, physical appearance, and age. These factors can lead to both empowerment and oppression.

Intersectionality arose in reaction to both white feminism and the then male-dominated Black liberation movement, citing the "interlocking oppressions" of racism, sexism and heteronormativity. It broadens the scope of the first and second waves of feminism, which largely focused on the experiences of women who were white, cisgender, and middle-class, to include the different experiences of women of color, poor women, immigrant women, and other groups, and aims to separate itself from white feminism by acknowledging women's differing experiences and identities.

Identity politics is politics based on a particular identity, such as ethnicity, race, nationality, religion, denomination, gender, sexual orientation, social background, political affiliation, caste, age, education, disability, opinion, intelligence, and social class. The term encompasses various often-populist political phenomena and rhetoric, such as governmental migration policies that regulate mobility and opportunity based on identities, left-wing agendas involving intersectional politics or class reductionism, and right-wing nationalist agendas of exclusion of national or ethnic "others".

The term identity politics dates to the late twentieth century, although it had precursors in the writings of individuals such as Mary Wollstonecraft and Frantz Fanon. Many contemporary advocates of identity politics take an intersectional perspective, which they argue accounts for a range of interacting systems of oppression that may affect a person's life and originate from their various identities. To these advocates, identity politics helps center the experiences of those they view as facing systemic oppression so that society can better understand the interplay of different forms of demographic-based oppression and ensure that no one group is disproportionately affected by political actions. Contemporary identity labels—such as people of specific race, ethnicity, sex, gender identity, sexual orientation, age—are not mutually exclusive but are, in many cases, compounded into one when describing hyper-specific groups. An example is that of African-American homosexual women, who can constitute a particular hyper-specific identity class.

The Republic (Ancient Greek: Πολιτεία, romanized: Politeia; Latin: De Republica) is a Socratic dialogue authored by Plato around 375 BC, concerning justice (dikaiosúnē), the order and character of the just city-state, and the just man. It is Plato's best-known work, and one of the world's most influential works of philosophy and political theory, both intellectually and historically.

In the dialogue, Socrates discusses with various Athenians and foreigners the meaning of justice and whether the just man is happier than the unjust man. He considers the natures of existing regimes and then proposes a series of hypothetical cities in comparison, culminating in Kallipolis (Καλλίπολις), a utopian city-state ruled by a class of philosopher-kings. They also discuss ageing, love, theory of forms, the immortality of the soul, and the role of the philosopher and of poetry in society. The dialogue's setting seems to be the time of the Peloponnesian War.

Debate is a process that involves formal discourse, discussion, and oral addresses on a particular collection of topics, often with a moderator and an audience. In a debate, arguments are put forward for opposing viewpoints. Historically, debates have occurred in public meetings, academic institutions, debate halls, coffeehouses, competitions, and legislative assemblies. Debates have also been conducted for educational and recreational purposes, usually associated with educational establishments and debating societies. These debates emphasize logical consistency, factual accuracy, and emotional appeal to an audience. Modern competitive debate also includes rules for participants to discuss and decide upon the framework of the debate (how it will be judged).

The term "debate" may also apply to a more continuous, inclusive, and less formalized process through which issues are explored and resolved across a range of agencies and among the general public. For example, the European Commission in 2021 published a Green Paper on Ageing, intended to generate such a debate on "policies to address the challenges and opportunities of ageing" in upcoming years. Pope Francis has also referred to the "need for forthright and honest debate" on society and the environment in his 2015 encyclical letter Laudato si'.

Prejudice can be an affective feeling towards a person based on their perceived social group membership. The word is often used to refer to a preconceived (usually unfavourable) evaluation or classification of another person based on that person's perceived personal characteristics, such as sex, gender, gender identity, beliefs, values, social class, friendship, age, disability, religion, sexuality, race, ethnicity, language, nationality, culture, complexion, beauty, height, body weight, occupation, wealth, education, criminality, sport-team affiliation, music tastes or other perceived characteristics.

The word "prejudice" can also refer to unfounded or pigeonholed beliefs and it may apply to "any unreasonable attitude that is unusually resistant to rational influence". Gordon Allport defined prejudice as a "feeling, favorable or unfavorable, toward a person or thing, prior to, or not based on, actual experience". Auestad (2015) defines prejudice as characterized by "symbolic transfer", transfer of a value-laden meaning content onto a socially-formed category and then on to individuals who are taken to belong to that category, resistance to change, and overgeneralization.

Human physical appearance is the outward phenotype or look of human beings.

There are functionally infinite variations in human phenotypes, though society reduces the variability to distinct categories. The physical appearance of humans, in particular those attributes which are regarded as important for physical attractiveness, are believed by anthropologists to affect the development of personality significantly and social relations. Many humans are acutely sensitive to their physical appearance. Some differences in human appearance are genetic, others are the result of age, lifestyle or disease, and many are the result of personal adornment.

Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language. In adults, it can create difficulties with social interaction and at work. Hearing loss can be temporary or permanent. Hearing loss related to age usually affects both ears and is due to cochlear hair cell loss. In some people, particularly older people, hearing loss can result in loneliness.

Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear or brain, and certain medications or toxins. A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy, such as cytomegalovirus, syphilis and rubella, may also cause hearing loss in the child. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear. Testing for poor hearing is recommended for all newborns. Hearing loss can be categorized as minimal/slight (15 to 25 dB), mild (25 to 40 dB), moderate (41 to 55 dB), moderate-severe (56 to 70 dB), severe (71 to 90 dB), or profound (greater than 90 dB). There are three main types of hearing loss: conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.