Articles tagged with Human Population
A recent NTU Singapore study reconstructed the history of The Sundaland using paleogeography and population genetics to show that rapid sea-level rise drove early settlers to migrate, increasing genetic diversity. This finding provides insight into how climate change can profoundly impact human populations.
A large-scale observational study from China demonstrates a strong link between ideal cardiovascular health and lower mortality rates. Individuals with higher scores on behavioral and medical factors had approximately a 50% lower risk of all-cause, CVD, and respiratory mortality compared to those with lower scores.
Researchers at Cornell University found that wild bumblebee queens are being killed in commercial hives due to their attractive colors and smells. The study used queen excluders to test the hypothesis that these hyper-attractive cues are attracting usurping wild queens, leading to their deaths.
A nationwide Finnish study found that around 58% of people with low educational attainment by age 30 will have a diagnosis of a mental disorder by age 52. The study also showed a stronger association between lower socioeconomic position and later diagnoses of substance misuse or schizophrenia spectrum disorders.
Adults living in neighborhoods with dense fast food and unhealthy food environments, known as
A new study found that women with pre-pregnancy migraine had greater risks of preterm delivery, gestational hypertension, and preeclampsia. Migraine with aura was associated with a higher risk of preeclampsia than without aura.
A study found that people with coeliac disease have a 27% increased risk of cardiovascular disease compared to those without the condition. Despite this, they tend to have lower BMI and blood pressure, which are traditional cardiovascular risk factors.
A new model has integrated two classic approaches to improve disease spread predictions, accounting for age-specific contact patterns and location-specific data. The model outperformed previous approaches in simulation studies and case studies, providing valuable insights into disease prevention and control.
A higher rate of sudden infant death syndrome (SIDS) was observed among siblings of children who died of SIDS compared to the general population. Shared genetic and/or environmental factors may contribute to this clustering of SIDS, warranting consideration of family history in clinical assessments.
The number of cardiovascular disease-related deaths in the US rose significantly between 2019 and 2020, with Asian, Black and Hispanic populations most affected. The largest single-year increase since 2015 was seen in CVD deaths among these populations, highlighting structural and societal disparities.
West Virginia University professors Dana Coester and Joel Beeson are addressing election integrity in Appalachia through a series of nonpartisan workshops, presentations, and screenings. They aim to foster community resilience against disinformation and manipulation, promoting civic engagement among young people.
A new study by a Penn State-led research team found that the intensification of crop use led to changes in age-independent mortality rates in pre-colonial North America. The first stage of agricultural intensification coincided with lower age-independent mortality, while the second stage was associated with a rise in it.
Researchers found that regional factors such as ambient humidity, temperatures, population mobility, and household incomes significantly impact COVID-19 mortality rates. The study revealed that high humidity, low average temperatures, intensive migration, and higher incomes are associated with increased mortality.
Researchers from UCalgary and the World Health Organization found that people with hybrid immunity have the highest level of protection against severe illness and reinfection, offering a key finding for public policy makers. The study suggests vaccination should be prioritized even among those who have had COVID-19.
Researchers in Japan have developed a novel method to assign workplace locations to individuals in synthetic populations, addressing a significant limitation of previous models. This breakthrough enables more accurate social simulations, which can be used to assess various social issues and inform policy decisions.
A study found that human presence in Glacier National Park causes 16 out of 22 mammal species to change their movement patterns, using different areas or being more nocturnal. The researchers suggest that this effect is significant enough to impact population survival.
A recent study from West Virginia University found that states permitting nurse practitioners to exercise full practice authority (FPA) tend to have a more diverse and racially aligned NP workforce. In FPA states, Black NPs serve 2.8% more Black Medicare beneficiaries than in non-FPA states.
Researchers analyzed ancient genomes from ten individuals up to 7,500 years old in Siberia, revealing a previously unknown hunter-gatherer population that contributed to many contemporaneous and subsequent populations across North Asia. The genetic data show a mix of paleo-Siberian and Ancient North Eurasian people, with links to hunte...
Researchers advocate for descendant community involvement in ancient DNA research to ensure benefits and risks are shared fairly. Without such guidance, the science can be exploitative, perpetuating colonial practices and harming modern Indigenous groups.
A recent study found a significant decrease in influenza activity in China during the 2020-2022 COVID-19 pandemic, particularly in winter and spring. The observed reduction in influenza seasonality may be attributed to everyday COVID-19 public health interventions.
A seventeen-year study by Maharishi International University found that group meditation decreased multiple stress indicators in the US, resulting in reduced murder rates and improved overall well-being. The study suggests that collective consciousness can create coherence through the unified field level of natural law.
A new study from the University of Virginia Health System found that mRNA booster shots increase the durability of antibodies to COVID-19. The boosters led to longer-lasting antibodies, even in those who had previously recovered from a COVID-19 infection.
A nationwide cohort study in Sweden found that elite male football players have a lower risk of alcohol and drug related disorders compared to the general population. This protective effect was seen only for those who first played in the 1960s and later, while players from earlier eras had similar risks as men from the general population.
A new analysis of firearm death rates in the US reveals that Black men are disproportionately affected by homicide, while white men are more likely to die by suicide. The study, which analyzed data from 1981 to 2020, also shows that minority populations bear a disproportionate burden of years lost due to premature death.
Researchers developed a machine learning model that uses microbiome data from wastewater to estimate the number of individuals represented in a sample. The method was trained on over 1,100 people's samples and can be used to link wastewater properties to individual-level data.
Researchers propose an alternative redistricting procedure that takes input from two major political parties and results in quantifiably fairer district maps. The bisection protocol, inspired by the
A global study found that most rodents spreading zoonotic pathogens live near or in human dwellings, exhibit large population fluctuations, and are hunted for meat or fur. These factors contribute to the transmission risk between humans and rodents, particularly in regions such as Europe and South America.
Research suggests that most dual smokers and vapers will continue smoking or vaping over time. The study found that vaping didn't contribute to substantial smoking cessation at the population level, emphasizing the need to help dual users ditch both products.
A study published in PLoS Genetics reveals the mechanism by which a selfish gene in yeast, wtf4, enables its function using a poison-antidote strategy. This strategy involves the production of poison protein that can kill spores, but is countered by an antidote protein produced only by those spores that inherit the drive allele.
A study found that genetic variants near ERAP2 and TICAM2 provided protection against Yersinia pestis, the bacterium responsible for the Black Death. These variants were also associated with improved detection and resistance to other pathogens, but at a cost: increased risk of autoimmune disorders like Crohn's disease.
The City of Tempe and Arizona State University have developed a unique partnership to track COVID-19 using wastewater-based epidemiology, providing early warning data for municipalities. The system has been shown to reliably predict SARS-CoV-2 levels in city ZIP codes up to 11 days ahead of clinical testing results.
The Global Roadmap for Healthy Longevity aims to design societies that benefit both older and younger individuals. Investing in the health, well-being, and purpose of older adults can yield great rewards for all ages, fostering productive lives, social capital, and a sense of fulfillment.
A new MIT study suggests that prioritizing polluting power plants in times of wind energy generation could quadruple the health benefits associated with wind power, resulting in $8.4 billion in nationwide health benefits. However, this approach would not address existing disparities in air pollution exposure among low-income and minori...
The study found that the Erfurt Jewish community was more genetically diverse than modern-day Ashkenazi Jews, with at least two distinct groups. The research team discovered that the founder event, which makes all Ashkenazi Jews today descendants of a small population, happened before the 14th century.
A team of scientists analyzed ancient DNA from medieval German Jews and found that the Ashkenazi Jewish community was more genetically diverse than modern-day Jews. The study suggests that the founder event occurred before the 14th century, with a small population giving rise to the modern Ashkenazi Jewish population.
A new study by Anglia Ruskin University found significant disparities in job application outcomes based on age, gender, and race. The research revealed that younger candidates were more likely to receive job interviews and higher salaries compared to older workers from diverse backgrounds.
A long-term study found that eating more than 100 micrograms of vitamin K1 daily reduced the risk of fractures and hospitalizations by 31-49%. Dark leafy vegetables and one-to-two serves of vegetables are recommended for optimal benefits. Vitamin K1 has been shown to enhance cardiovascular health and promote bone health.
A new study estimates that the pandemic has cost over 1 million Russian lives, with regional differences in mortality rates reported. The research used a novel methodology to calculate excess mortality, including deaths from lockdowns and postponed operations.
A University of Maryland study found that domestic cats in Washington D.C. have a high probability of overlapping with native wildlife, including raccoons and opossums, increasing the risk of disease transmission and harming native populations. Keeping cats indoors can significantly reduce these risks.
Researchers have detected five emerging tick-borne pathogens in Central Canada, including those causing Lyme disease and babesiosis. Climate change and habitat fragmentation contribute to the spread of these pathogens, highlighting the need for increased awareness and protection measures.
Researchers found that habitat loss and climate-induced food shortages drive pathogen spillover, but preserving and restoring natural habitats can prevent these events. By analyzing data from Australia, the study predicts when viruses like Hendra and Nipah will spill over from bats to humans.
An international study found that housing cost to income ratio is strongly associated with preventable deaths and suicide in developed countries. However, social spending on pension and unemployment benefits can lower these risks. Housing policy measures such as public housing stock and rent controls also show protective effects.
A new study from the Indian Institute of Science sheds light on blackbucks' genetic diversity and survival strategies. Despite human activities restricting their habitats, male blackbucks disperse more than expected, contributing to geneflow, while females stay within native population ranges.
A large-scale Australian study found that highly processed and refined foods are the primary contributor to rising obesity rates. The 'Protein Leverage Hypothesis' suggests that people overeat fats and carbohydrates due to their strong appetite for protein, leading to an increased risk of chronic disease.
A human genetic study suggests that Madagascar's loss of large vertebrates is linked to the first major human expansion on the island around 1,000 years ago. The study found that a small group of Bantu-speaking African people arrived on the island and led to the rapid growth of the human population.
The employment-to-population ratio for people with disabilities increased to historic highs in October, while those without disabilities are only reaching pre-pandemic levels. These gains may lead to long-term improvements in workplace integration of people with disabilities.
Dr. Bibbins-Domingo's research focuses on racial disparities in cardiovascular disease prevention, incidence, and outcomes. She explores long-term effects of early and poorly treated high blood pressure and develops strategies to prevent and manage CVD.
The September 2022 nTIDE COVID Update shows a slight rise in unemployment for people with disabilities, consistent with an increase in individuals entering the labor force. This trend is linked to poverty and financial hardship among people with disabilities, highlighting the need for continued support.
A study by Max Planck Researcher Jonas Schöley and colleagues found that life expectancy continued to decline globally in 2021, with differences between Eastern and Western Europe widening. However, vaccination efforts helped mitigate mortality shocks in some countries, particularly those with robust healthcare systems.
A genetic variant associated with low levels of HDL 'good' cholesterol and high triglycerides has been identified in Polynesian people. This discovery provides new insights into the genetic causes of high cholesterol and may lead to the development of more effective treatment options.
A new study co-authored by Yale sociologist Emma Zang found that college-educated Black women give birth to fewer children than their white and Hispanic counterparts. The study also showed that Black and Hispanic women without college degrees have more births than similarly educated white women. Highly educated women tend to have fewer...
A new study from the University of Kansas finds that parents from marginalized backgrounds and lower educational attainment make more compromises on school features, resulting in lower satisfaction. The research suggests that these parents are not lacking in understanding what would be best for their children, but rather face constrain...
A mathematical model suggests that social interactions between sedentary and moderately active people can stimulate higher levels of overall physical activity in a population. The model found that interacting with moderately active individuals helped sedentary populations become more physically active over time.
Research found that the Black Death drove changes in immune-related genetic variants, affecting disease susceptibility. A specific gene variant, ERAP2, was associated with increased protection against the plague, but also linked to autoimmune diseases like Crohn's disease.
Researchers discovered that stillbirth can be inherited and tends to be passed down through male members of the family, particularly on the father's side. This trend was identified in a large study analyzing health histories of families over multiple generations.
A modelling study published in Scientific Reports suggests that modern humans (Homo Sapiens) and Neanderthals (Homo neanderthalensis) co-existed in Europe for as long as 5,000 to 6,000 years. The study estimates that the two species overlapped for between 1,400 and 2,900 years before Neanderthals became extinct.
The American College of Physicians recommends increasing funding for health services and prioritizing health promotion in Indigenous communities. Community-driven public policy is also necessary to address historical trauma, social determinants of health, and inadequate access to healthcare services.
A Finnish study found that retiring individuals experience an increase in sleep time and a corresponding decrease in physical activity. This shift is attributed to the absence of work-related activities and commute time, which are replaced by sedentary behavior.
Researchers mapped the spread of pathogens in wild macaque populations near human settlements, finding that monkeys with high human interactions cause larger outbreaks. The study used computer simulations to predict disease transmission and identified key factors influencing outbreak size.
A UTHealth Houston study found regional disparities in cancer screening rates tied to social vulnerability, with lower rates in more vulnerable counties. The study analyzed 3,141 US counties and discovered significant differences in breast, cervical, and colorectal cancer screenings.