Articles tagged with World Population
A global review of research on stature and health during the agriculture transition found consistent trends of declining height and health globally. The study, published by Emory Health Sciences, analyzed data from various world regions and cultures, revealing a link between early agricultural practices and reduced adaptability to stress.
A new article in PLOS Medicine argues that current policies on migration and health have been conducted within sector silos, hindering coordinated efforts. A framework is proposed to describe migration as a multi-staged process with various intervention opportunities, highlighting points for international coordination.
India has released its first updated tiger population numbers since 2007, estimating 1,706 tigers, an increase of 225 from the previous count. The figure includes an additional reserve in the Sundarbans, resulting in a corrected total of 1,636.
A study by Eric Lambin predicts the world may run out of productive agricultural land by 2050 due to rising global demand and land degradation. However, some developing countries have increased their forest cover while enhancing food production through innovation, sound policy, and good governance.
The University of Pennsylvania School of Veterinary Medicine has awarded $100,000 to Mo Salman, Nikkita Patel, and Brittany Gross for their innovative projects advancing veterinary medicine. Salmon's work focuses on infectious disease management, while Patel and Gross develop public outreach initiatives and sustainable dairy farms.
Research in 30 countries found substantial inequalities in maternal and newborn health, as well as access to healthcare. The study identifies two main patterns of urban inequality in developing countries, highlighting the need for improved access to care.
Researchers warn that rising CO2 levels could dramatically change the behavior of baby fish, making them more susceptible to predators and decreasing their chances of survival. This shift is expected to have serious implications for the sustainability of fish populations, threatening food security as a result.
A new study by Harvard T.H. Chan School of Public Health found that over 2 billion people worldwide lack access to surgical treatment, with a disproportionate burden on low-income countries. The study highlights the need for better access to surgical services, particularly in emergency situations such as childbirth and road accidents.
A study predicts that rising global temperatures could lead to the extinction of 20% of all lizard species by 2080, with many species already living at thermal limits. The research, led by Barry Sinervo, used field data and modeling to forecast extinction risks for various lizard species worldwide.
The University of Oklahoma Health Sciences Center has received a $100,000 Grand Challenges Explorations grant to develop a safe and cost-effective strategy for immune intervention. The project aims to boost immunity with minimal adverse effects in populations at risk due to malnutrition and poor socio-economic conditions.
A new study in the journal Political Insight suggests that older adults can play a pivotal role in their communities through dedicated volunteering and participation. The researchers argue that promoting lifelong learning and community action among older people can help them feel less overwhelmed and isolated, and may even lead to bett...
A Michigan State University scientist warns that China and India's growing economies and populations will significantly impact the global environment unless they work together. The two countries are urged to exercise environmental stewardship to ensure future economic growth.
A new study from the University of Chicago Press Journals questions the notion that choice is key to well-being. Research suggests that personal freedom and autonomy may not be universally valued or beneficial across cultures. Instead, the emphasis on choice can lead to a numbing uncertainty, depression, and selfishness.
The Lancet Editorial highlights the global undernutrition crisis, affecting over 1 billion people, particularly in Asia and Africa. The world currently produces enough food to feed everyone, yet inequitable distribution and lack of national safety nets hinder access to nutritious food.
A recent study has shown that conservation targets are often too small to prevent extinction due to global climate change and habitat loss. Populations of endangered species require at least 5000 mature individuals to persist, highlighting the need for more effective conservation management.
The Russian government should continue funding harm reduction programs for injecting drug users, as they are crucial for tackling the HIV epidemic. These programs have been instrumental in reducing deaths and improving health outcomes among this vulnerable population.
Scientists in China have discovered that a natural plant hormone can help plants eliminate residues of certain pesticides, including chloropyrifos. The substance significantly reduces toxicity and residues in the plants, making it a promising, environmentally friendly solution.
Researchers estimate diabetes prevalence in US states, finding the South has the highest rates. States like Minnesota and Alabama have high levels of blood pressure and cardiovascular disease risk.
Researchers found that applying a natural plant hormone can help eliminate pesticide residues from crops, reducing environmental exposure to pesticides. The study suggests using brassinosteroids as an environmentally friendly alternative to minimize pesticide risks.
Researchers at the Virginia Bioinformatics Institute aim to create a petascale computational modeling environment to simulate billions of individuals in large social and information networks. This project seeks to improve agent-based modeling applications on 100,000+ processor architectures.
A new study suggests that genetic variations in humans are more closely tied to geographical and historical factors than previously thought. The research found that gene variants tend to be distributed throughout the world in patterns reflecting ancient population movements and other aspects of population history.
A study published in Biological Conservation reveals that a nesting population of leatherback sea turtles in Gabon has the world's largest female population of between 15,730 and 41,373. The research highlights the importance of conservation efforts to protect these critically endangered turtles.
Basking sharks, the world's second-largest fish, migrate through tropical waters of the Atlantic Ocean during winter, defying previous notions of their habitat. This discovery highlights the need for coordinated conservation efforts to protect this threatened species.
Researchers have detected slow slip events along a major fault zone beneath the Nicoya Peninsula, shedding light on the full spectrum of motions occurring on the fault. The findings may yield new insights into the events that lead to major earthquakes, but experts caution that more study is needed.
Climate change may lead to severe food shortages affecting half the world's population by 2100, as tropical regions experience reduced crop yields and increased water stress. The research highlights the need for adaptation and mitigation strategies to address these impacts.
The Biotechnology and Biological Sciences Research Council (BBSRC) and the US National Institute on Aging (NIA) have joined forces to fund collaborative UK-US research projects into normal ageing. The programme aims to develop research links between UK and US research groups to further our understanding of healthy biology of ageing.
A University of Pittsburgh study found that mixing ten common pesticides within EPA safe limits can cause 99% mortality in leopard frog tadpoles. Endosulfan, a banned neurotoxin, is particularly deadly, causing 84% mortality when used alone.
Scientists at Rockefeller University have developed a predictive model of worldwide population shifts that will provide more accurate estimates of migration patterns. The model accounts for approximately 60% of the variation in annual numbers of migrants and has the potential to improve resource allocation and economic conditions.
A study published in the Journal of Motor Behavior found that golfers who keep their heads still during putting may actually hinder their game. The research, led by McMaster University's Tim Lee, discovered that even expert golfers move their heads slightly during putts, contrary to conventional wisdom.
NASA's Socioeconomic Data and Applications Center (SEDAC) uses gridded population products to assess exposed populations in disaster areas. The data helps officials understand population density and calculate casualties, projected homelessness, and secondary impacts.
A lack of integrated national health surveillance system in Canada poses significant risks to public health and hinders global response to emergencies. The absence of timely reporting mechanisms and poor coordination between federal and regional governments exacerbate the issue.
An obese population requires 18% more food energy to maintain daily living activities compared to a normal population, resulting in increased global food demand. Promoting walking and cycling through transport policies can reduce obesity and decrease food prices by reducing transportation fuel consumption.
A new study reveals that farmed salmon exposure leads to significant declines in wild salmon survival rates, threatening global salmonid populations. The research found a 50% reduction in wild salmon abundance when associated with salmon farms, highlighting the need for sustainable aquaculture practices.
A new study suggests that climate change will primarily impact the world's poor, who are least responsible for the problem, highlighting an ethical crisis. The research, led by Jonathan Patz, quantifies the relationship between carbon emissions and disease burden, revealing stark contrasts between developed and developing countries.
A Comment in The Lancet calls for global investment in civil registration to improve data on population and health trends. This would enable countries to make informed decisions on governance and healthcare policies.
A study of 9,425 people in 12 countries found a higher prevalence of stage II or higher COPD than previously estimated. The disease is expected to increase as the global population ages due to risk factors such as tobacco use and occupational exposures.
Researchers warn that global warming is forcing gannets to search further afield for food, leaving their chicks vulnerable to attack. The birds' breeding success is declining as they compensate by flying faster, but their speed limit has been reached.
The new IHR aims to prevent national public health emergencies from spreading internationally, but poorer countries lack the capacity to meet demands. China fears a Taiwan public health emergency could spread globally, highlighting the need for global surveillance.
A study by Cardiff University found that DNA similarity between African bushbuck populations can reveal similarities and differences in ecoregions. The research identifies 28 key regions for the species, providing a framework for pan-African conservation efforts.
The number of people with diabetes has increased substantially, making it one of the most costly chronic diseases. Researchers found a 69% rise in diabetes prevalence in Ontario, Canada from 1995 to 2005, exceeding global predictions for 2030.
Rising temperatures could lead to extreme infant mortality and declines in nesting beaches across the USA, according to a study analyzing 26 years of loggerhead turtle nesting and climate data. Conservation efforts are recommended for protecting northern breeding grounds, as male turtles are essential for population sustainability.
A recent study estimates that a similar flu pandemic to the 1918-1920 pandemic could claim 62 million lives worldwide. The majority of deaths would occur in developing countries, where per capita income is lower.
A pioneering study reveals that the world's wealthiest individuals hold disproportionately large amounts of wealth, with the top 10% owning 85% of global assets. The richest countries in North America, Europe, and Asia-Pacific contribute to this concentration of wealth.
The ESSP launched a new research initiative to identify and quantify health risks posed by global environmental change, aiming to develop cost-effective adaptation strategies. Climate and land-use changes pose significant health threats, including malaria, malnutrition, skin cancer, and immune system depression.
A leading expert calls for Europe to take the lead in family planning, citing its potential benefits in achieving MDGs. Despite low funding and support, family planning programmes have shown success in raising contraceptive practice and reducing fertility in developing countries.
A recent study published in The Lancet reveals that over 78 million Asians are living in extreme poverty due to out-of-pocket healthcare payments. This is 2.7% higher than previously estimated poverty rates, with the burden of healthcare payments being highest in Vietnam and lowest in Malaysia.
A recent study published in the Journal of Physiology found that short bursts of intense exercise separated by recovery time provide similar benefits to longer periods of moderate exercise. High-intensity interval training can be an effective option for those with limited time, burning calories during and after exercise.
The Comprehensive Assessment reveals that one-third of the world's population lives in areas where water is either over-used or cannot be accessed due to lack of infrastructure. The study calls for radical changes in water management to address the growing water crisis.
The Mapping the Future map shows significant population growth in developing countries and increases in coastal populations exposed to sea level rise. Meanwhile, parts of Eastern Europe, Asia, and Japan are expected to experience widespread population decline.
The latest Global Disease Burden study finds a 20% reduction in global disease burden, but HIV/AIDS and malaria increase death tolls, particularly in sub-Saharan Africa. Meanwhile, Eastern Europe experiences a 'striking reversal' in falling adult mortality rates without effective health monitoring.
Ignoring Indigenous communities' health experiences under current MDG policies puts them at risk of disappearing forever. The Lancet series highlights the importance of including Indigenous wisdom and rights in international health and medicine.
The global community faces a worsening crisis with 1.2 million road-traffic fatalities in 2002, projected to rise to third leading cause of disease by 2020. A UN resolution promotes road safety measures and organizes the first Global Road-Safety Week.
Scientists link global warming to amphibian population decline and disease wipeouts, citing a pathogenic fungus as the primary cause. The study found that large-scale warming is a key factor in disappearances of many amphibian species in cloud forest environments.
A new study found that men's body image improved as much as women's in a 12-week strength training program, but for different reasons. For men, it was related to perceived changes in their bodies, while for women, it was tied to both perceived and real physical improvements, including increases in weight lifted at the gym.
A recent study by Ravi Retnakaran and colleagues found that Aboriginal youths who smoked more than six cigarettes per day had higher systolic blood pressure and plasma homocysteine levels. The study highlights the importance of addressing smoking habits among Aboriginal youth to prevent cardiovascular disease.
A growing coastal population is set to experience more frequent and intense natural disasters due to climate change. Healthy ecosystems such as coral reefs and mangrove forests can provide natural barriers and absorb the impact of these disasters, whereas man-made structures are less effective.
The five-year project aims to develop innovative tools for measuring population health, particularly in resource-poor settings. It will provide governments and communities with practical strategies to understand their health state and prioritize spending, ultimately improving global health outcomes.
The American Association for the Advancement of Science has identified 125 major questions that scientists have yet to answer, including the nature of dark matter and the biological basis of consciousness. The journal's special issue marks its 125th anniversary and explores these fundamental gaps in scientific knowledge.
A new study reveals that the first New World populations were founded by a remarkably small group of approximately 70 individuals, who left their ancestral Asian population around 7,000 to 14,000 years ago. This approach addresses limitations in traditional genetic studies and provides insight into the history of the Americas.
A new global risk analysis reveals that approximately 20% of the Earth's land surface is exposed to at least one natural hazard, affecting over half the world's population. The study categorizes regions by their level of exposure to multiple hazards, highlighting countries with high mortality risks from two or more hazards.