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— CH. 1 · EVOLUTIONARY LONGEVITY AND KINSHIP —

Grandparent

~6 min read · Ch. 1 of 6
6 sections
  • Around 30,000 years ago, the number of modern humans who lived to be a grandparent increased. This shift in human longevity allowed three generations to coexist for the first time on a significant scale. Historians and biologists believe this change was not random but served a critical survival function. When multiple generations lived together, they could preserve vital information that might otherwise have been lost. An example of such knowledge includes knowing where to find water during times of drought or understanding seasonal migration patterns for food sources. The preservation of these details became essential for group survival as environments changed. Before this period, most individuals died before their children reached adulthood, leaving little opportunity for intergenerational teaching. The emergence of grandparents created a new dynamic where wisdom accumulated over decades could be passed down directly. This biological and social development laid the foundation for complex human societies. It transformed family structures from simple parent-child units into multi-generational networks capable of long-term planning.

  • In Bangladesh, Pakistan, and many parts of India, maternal grandparents are called Nana and Nani. Similarly, paternal grandparents are called Dada and Dadi. One's parents' maternal grandparents are called Par-nani and Par-nana. On similar lines, parents' paternal grandparents are called Par-dadi and Par-dada. In Northern China, people often use laolao and laoye, while Mandarin-speaking Southerners often use wài pó (外婆) and wài gōng (外公). In the Philippines, grandparents are called lolo (grandfather) and lola (grandmother). Swedish language distinguishes between mormor for mother's mother and farmor for father's mother. Danish and Norwegian use words which specify kinship like in Swedish, as well as using common terms similar to grandmother. In Flanders, pepee or petje and memee or metje are most used. In Friesland, a common pair is pake and beppe. The prefix grand- dates from the early 13th century, derived from Anglo-French graund. Old English used prefixes ealde- (old) and ieldra- (elder) instead. A great-grandfather was called a þridda fæder (third father), a great-great-grandfather a fēowerða fæder (fourth father). These linguistic variations reflect deep cultural distinctions regarding family roles and respect.

  • According to a 2012 study based on 2010 census data, around 10% of children in the U.S. live in a household including a grandparent. Of these, approximately a third live in a household consisting of two parents and a grandparent. More than 40% of grandparents across 11 European countries care for their grandchildren in the absence of the parents. In Britain, around 63% of grandparents care for their grandchildren who are under 16 years old. In China, around 58% of Chinese grandparents aged 45 or older are involved in childcare. In Singapore, 40% of children from birth to three years old are cared by their grandparents. In South Korea, 53% of children under age 6 are cared by their grandparents. Life expectancy has increased while fertility rates have decreased globally. This means more children grow up while their grandparents remain alive and able to participate in childcare. Reduced fertility allows grandparents to devote more attention and resources to fewer grandchildren. More mothers now work outside the home, creating demand for alternative caregivers. In Hong Kong, 55% of grandparents reported taking care of grandchildren because parents must work. In South Korea, 53% of working mothers received child care services from their parents. The increasing number of single-parent families creates additional need for grandparental support.

  • In the US, compared with those who do not take care of grandchildren, involved grandparents are more likely to suffer heart disease, hypertension, or body pain. Taking care of grandchildren can reduce time for self-care, leading to missed medical appointments. Raising young children again could be stressful and overwhelming, resulting in anxiety or depression. Grandparents forced to limit social activities become isolated from their social relations. They fear for their grandchildren's future well-being due to disability and death. If they cannot handle the caregiver role well, it becomes a burden bringing severe health issues. However, taking care of grandchildren helps elder grandparents maintain mental capacities in later life. Frequent interactions with grandchildren could reduce cognitive aging process, allowing them to live more vibrant lives. Those caring for grandchildren long hours are more likely to have better cognitive functions. They are less likely to develop diseases such as dementia. Grandparents also benefit from physically exercising more during this process. Many start to feel purpose and meaning after retirement through caregiving experiences. Their ties with adult children and grandchildren strengthen significantly.

  • Children and adolescents with close relationships to grandparents tend to experience fewer emotional problems and demonstrate fewer problematic behaviors. They are more academically engaged and more likely to help others. Previous research suggests these children show better overall well-being. On the other hand, some studies indicate grandparent involvement associates with hyperactivity and peer difficulties among young children. Children under grandparent care can face poorer health outcomes like obesity and injuries from low safety awareness. In China, up to 220 million migrant workers moved to urban areas since the 1980s, leaving around 58 million children behind. These left-behind grandparents undertake parental roles while facing financial burdens. Chinese traditions emphasize family harmony, collective well-being, intergenerational exchanges, and filial responsibilities. Buddhism prioritizes family role in society while Taoism emphasizes harmony between humans and nature. Caucasian individuals generally regard individual independence as important, making them less likely to take care of grandchildren. African American and Latino individuals view looking after grandchildren as family tradition and provide more help. African American grandparents offer guidance and discipline due to flexible family systems. Latino families prefer living together and keeping frequent contact because most are immigrants or first-generation born.

Common questions

When did the number of modern humans who lived to be a grandparent increase?

The number of modern humans who lived to be a grandparent increased around 30,000 years ago. This shift allowed three generations to coexist for the first time on a significant scale.

What are maternal grandparents called in Bangladesh and Pakistan?

Maternal grandparents are called Nana and Nani in Bangladesh, Pakistan, and many parts of India. Paternal grandparents are called Dada and Dadi in these regions.

How many children in the U.S. live in a household including a grandparent according to 2012 study data?

Around 10% of children in the U.S. live in a household including a grandparent based on 2010 census data analyzed in a 2012 study. Approximately one third of these households consist of two parents and a grandparent.

On what date did France recognize the right of grandparents to visit through a Court of Cassation ruling?

A Court of Cassation ruling on the 8th of July 1857 recognized the right of grandparents to visit in France. This right was enshrined following the law of the 4th of January 1970 as part of a general overhaul of family laws.

Why do grandparents who take care of grandchildren experience health risks compared to those who do not?

Grandparents involved in childcare are more likely to suffer heart disease, hypertension, or body pain due to reduced time for self-care and missed medical appointments. They may also face anxiety, depression, or isolation from social relations while managing the caregiver role.