Inequalities in Human Mortality 

Life expectancies at birth reveal significant disparities in death rates. Some of the lowest life expectancies at birth, around 55 years, are seen in sub-Saharan African countries, such as Nigeria, Chad, and South Sudan. Credit: Shutterstock

By Joseph Chamie
PORTLAND, USA, Apr 7 2026 (IPS)

As stated in Hamlet, “Thou know’st ’tis common; all that lives must die, Passing through nature to eternity.” Although death is inevitable for all living beings, human mortality, which is expected to reach approximately 64 million individual deaths worldwide in 2026, is not evenly distributed across populations.

While mortality is a common fate for all humans, the timing, causes, and circumstances of death vary greatly across and within countries. This discrepancy often leads to a gap in death rates between privileged and marginalized groups.

Inequalities in human mortality are evident worldwide. Premature death is particularly prevalent in low-income regions due to limited access to healthcare, poverty, and conflict. This results in a world where some individuals pass away at young ages while others enjoy a long life.

From the first year of life, significant differences in the likelihood of death among human populations become apparent. Countries such as Iceland, Japan, and Finland have some of the lowest infant mortality rates, with less than 2 infant deaths per 1,000 live births. In contrast, nations like Niger, Somalia, and Nigeria have some of the highest rates, with more than 62 infant deaths per 1,000 births, which is 30 times higher than the lowest rates (Figure 1).

The disparities in infant mortality rates are also evident in maternal mortality rates. In 2023, some of the highest maternal mortality rates are found in sub-Saharan African countries, such as South Sudan, Chad, and Nigeria, with more than 1,000 maternal deaths per 100,000 births. In contrast, countries like Norway, Poland, and Iceland have rates of less than 3 maternal deaths per 100,000 births.

Similarly, life expectancies at birth in 2025 reveal significant disparities in death rates. Some of the lowest life expectancies at birth, around 55 years, are seen in sub-Saharan African countries, such as Nigeria, Chad, and South Sudan. Conversely, countries like Japan, South Korea, and Switzerland have relatively high life expectancies at birth, approximately 30 years greater at about 85 years (Figure 2).

Disparities in death rates persist when comparing life expectancies at age 65. In 2025, life expectancy at age 65 is around 12 years in Nigeria, Chad, and Togo, while it is approximately 23 years in Japan, France, and Australia.

Mortality variations exist not only among countries but also within countries. For instance, in 2022, life expectancy at birth in the United States varied from highs of about 80 years in Hawaii, Massachusetts, and New Jersey to lows of approximately 73 years in Kentucky, Mississippi, and West Virgina (Figure 3).

Differences in life expectancy at birth exist among the major ethnic groups in the United States. In 2021, life expectancies at birth for these groups varied considerably, approximately 84 years for Asians, 78 for Latinos, 77 for Whites, 72 for Blacks, and 64 for Native Indians.

Furthermore, differences in life expectancy at birth also exist based on income and education. Generally, individuals from working-class backgrounds and those with lower levels of education can expect to live shorter lives compared to wealthier and more educated individuals.

For example, in the United States, working-class individuals can expect to die at least 7 years earlier than their wealthy counterparts. Higher education is also linked to higher income, lifestyle improvements, increased access to health-care, and longer life spans.

In addition to deaths caused by illness, disease, accidents, violence, conflict, and war, voluntary human death is becoming a significant global issue.

Inequalities in human mortality exist both among nations and within them, spanning various social and economic dimensions. While death is a natural part of life, the distribution of human deaths is unequal, with some individuals passing away at a young age while others enjoy a long life

Medically assisted death, also known as death with dignity, voluntary assisted dying, or medical aid in dying (MAID), is a topic of debate in many countries. This practice can involve assisted suicide, where the individual takes the lethal medication themselves, or euthanasia, where a doctor administers the medication.

While MAID is not legal in most countries, it is permitted in a growing number of countries under certain circumstances. Definitions and eligibility for medically assisted death vary across countries and states or provinces within countries.

Although laws vary in scope from place to place, jurisdictions that allow medically assisted death generally permit mentally competent, terminally ill, or suffering adults to end their lives with medical assistance. To qualify for voluntary assisted dying, individuals must meet certain criteria, which often include having a terminal or incurable illness with a short-term prognosis, being of sound judgment, voluntarily deciding to end their life, repeatedly expressing their desire to die, and self-administering the lethal dose.

Approximately twenty countries and various states or provinces within countries permit medically assisted death. These places include Austria, parts of Australia, Belgium, Canada, Colombia, Ecuador, Luxembourg, the Netherlands, New Zealand, Portugal, Spain, Switzerland, and parts of the United States. In a number of other countries, including France, Germany, Ireland, Portugal, and Great Britain, legislators are considering bills on laws or rules on medically assisted death.

Among those who choose to take a lethal dose of medication, some key concerns for many of them include the loss of autonomy, control, bodily functions, and dignity; minimizing severe pain and intense emotional distress; inability to engage in enjoyable or meaningful life activities; reduced quality of life; fear of becoming a burden on family and caregivers; anxiety over future suffering; and avoidance of financial implications of treatment.

Additionally, some of the most common medical conditions in euthanasia requests include cancer in a terminal phase, Alzheimer’s disease, dementia, constant suffering, and advanced cardiovascular disorders.

Those opposed to medically assisted death offer several arguments against it. They believe it creates the potential for abuse; leads to a slippery slope towards involuntary euthanasia; normalizes death as a solution; and undermines medical ethics and the sanctity of life.

They also argue that assisted suicide poses risks to vulnerable populations by influencing societal attitudes and policies towards older adults, the seriously ill, and the disabled. They believe it could lead to placing pressure on those considered a societal burden, jeopardizing funding and provision of palliative care. Additionally, there are concerns about ensuring that individuals’ decisions to end their lives are genuinely voluntary.

In summary, inequalities in human mortality exist both among nations and within them, spanning various social and economic dimensions. While death is a natural part of life, the distribution of human deaths is unequal, with some individuals passing away at a young age while others enjoy a long life.

The unequal distribution of resources often leads to a mortality gap between privileged and marginalized groups. Premature death is particularly prevalent in low-income regions, primarily due to factors such as limited access to healthcare, poverty, and conflict. Additionally, the contentious issue of voluntary human death, also known as medically assisted death, is receiving global attention. There are strong arguments both in favor of and against this policy, with around twenty countries allowing it under specific circumstances.

Joseph Chamie is a consulting demographer, a former director of the United Nations Population Division, and author of many publications on population issues.