From toxic leaks to microplastic pollution, scientists are exploring how pollutants affect human health. Exposomics is a new field that aims to understand our exposure to chemicals and their impact. Carmen Marsit, a molecular epidemiologist, is leading the charge to measure our exposure to chemicals and their breakdown products in blood. Learn how scientists are using gas chromatography, liquid chromatography, and mass spectrometry to identify the chemicals we are exposed to and the potential health risks associated with chronic exposure.

Think cold weather is only dangerous in extreme conditions? Think again. Research from the University of South Wales shows that even mild temperatures like 10°C can have a profound impact on the heart, lungs, and brain. Explore the science behind cold environments and their effects on the body in this eye-opening experiment.

How can urban planning decisions impact health? A new tool evaluates factors like green spaces and air pollution to assess potential health effects.

Did you know that air pollution can impair our sense of smell and cause anosmia? Studies have shown that exposure to small airborne pollution particles, largely from the combustion of fuels in vehicles, power stations and our homes, can lead to olfactory dysfunction, causing a gradual erosion of our sense of smell over time. This can have significant effects on our overall wellbeing, from reducing our ability to taste and enjoy food, to potentially being an early warning sign of dementia. Researchers from Johns Hopkins School of Medicine and Karolinska Institute have found a strong correlation between higher pollution levels and poorer smelling ability, suggesting that we need to take air pollution more seriously to protect our health.

Waste management is an essential aspect of public health, and it has a long and fascinating history. From ancient Roman public latrines to modern wastewater treatment plants, the evolution of toilets and sewage systems has been pivotal in preventing the spread of dangerous microorganisms that cause cholera, dysentery, and typhoid. Learning about the history of waste management is not only intellectually stimulating but also practically important for understanding the importance of proper sanitation. While modern toilets have a wide range of features, billions of people around the world still lack access to proper sanitation facilities, putting them at risk of disease. By studying the history of waste management and developing new sanitation technologies, we can address the behavioral, financial, and political issues that produce inequity throughout the sanitation pipeline and improve public health for all.

Scotland has become the first country to ban desflurane, an anaesthetic gas with a global warming potential 2,500 times greater than carbon dioxide, from its hospitals due to its environmental threat. The move would cut emissions equivalent to powering 1,700 homes a year. UK hospitals have already cut down, with over 40 hospital trusts in England and some in Wales having stopped using it. NHS England will introduce a similar ban from 2024. Anaesthetists have switched to safer alternatives, but more needs to be done to reduce the NHS's carbon footprint.

Millions in North Asia face a seasonal ordeal as sandstorms from the Gobi desert blanket the region in yellow dust, aggravating air pollution and putting people at risk of respiratory disease. With no realistic way to avoid it, people are forced to carry on with their daily lives despite the health risks. While China and South Korea face yellow dust, Thailand deals with its own pollution problem as wildfires and sugarcane field burning blanket the country's northern region in smog. Is this the new normal?

New research has identified gold-based compounds that could treat multidrug-resistant "superbugs", with some effectiveness against several bacteria. Antibiotic resistance is a global public health threat, and the development of new antibiotics has stalled. Gold metalloantibiotics, compounds with a gold ion at their core, could be a promising new approach. Dr. Sara M. Soto Gonzalez and colleagues studied the activity of 19 gold complexes against a range of multidrug-resistant bacteria isolated from patients. The gold compounds were effective against at least one bacterial species studied, with some displaying potent activity against several multidrug-resistant bacteria.

Researchers have identified lipid differences in patients with alcohol-related liver disease that could lead to earlier detection and new treatments. Sphingomyelins were found to be significantly reduced in scarred liver tissue, potentially serving as a biomarker for ALD. Learn more about this breakthrough research and its implications for the diagnosis and treatment of ALD.

Stanford researchers have developed a smart bandage that painlessly falls away from the skin and tracks signs of recovery and infection. It even responds with electrical stimulation to hasten healing. The bandage resulted in 25% faster healing, greater blood flow to injured tissue, and less scarring in animal studies. The bandage is just one example of how Stanford researchers combine organic chemistry and novel materials to reimagine medical devices in more powerful, personal, and unobtrusive ways.

Decades after nuclear testing, downwinders are still experiencing the devastating effects of radioactive fallout. As the possibility of a return to testing looms, National Geographic explores the impact of the U.S.'s atomic age and the risks of a new nuclear arms race.

Electronic waste is not just trash, it's a treasure trove of precious metals like gold! Researchers at the University of Cagliari and Imperial College London have found a way to extract gold from electronic waste and use it as a catalyst in making medicines. This not only prevents gold from being lost in landfills but also reduces our dependence on environmentally harmful mining practices.

The world is still facing daily COVID-19 infections and the threat of virus mutation, but it's not too late to change the game. A pandemic vaccine alliance, similar to NATO, could be the solution to overcome the "free-rider problem" in global health efforts and ensure the world's biological security.

Get ready for a game-changing medical innovation! Engineers from MIT have developed a biocompatible tissue glue inspired by barnacles that can quickly stop bleeding and seal wounds in a matter of seconds. This new paste could revolutionize the way we treat traumatic injuries and control bleeding during surgeries.

Electricity is a fundamental part of modern life, but could too much of it be harmful? Understanding the movement of electric charges and resulting electromagnetic radiation is key to answering this question. While some radiation, like UV light and X-rays, can be dangerous, most of the radiation emitted by human technology, such as mobile phones and household appliances, is harmless. However, some studies have suggested possible long-term harm from constant exposure to weak electromagnetic radiation. The debate surrounding this issue highlights the importance of reliable scientific studies and responsible communication of findings. Learning about the effects of electromagnetic radiation can help students make informed decisions about their technology use and contribute to ongoing scientific research.

The discovery of antibiotics in the 20th Century revolutionized healthcare, adding an average of 20 years to everyone's life. However, the overuse and misuse of antibiotics have led to the rise of antibiotic-resistant bacteria, or superbugs, which could cause a health crisis worse than any we've experienced this century. By 2050, it's predicted that 10 million people will die every year from complications with superbugs. A world without antibiotics would be catastrophic, impacting our food chain and causing many to die younger than they do now. As students, it's important to understand the consequences of antibiotic misuse and to be cautious when taking antibiotics. By finishing the full course of antibiotics, we can prevent the development of antibiotic-resistant bacteria. Additionally, we should be aware of the need for new antibiotics and support efforts to fund research into finding them. Anticipating problems and taking action before they become global crises is key to protecting our health and future.

Standing is a unique ability that only humans have, and it's a major achievement that has shaped human evolution. Standing upright has given us immense control and power, as it freed our hands to become versatile tools and increased our brain capacity. However, standing also comes with exposure and vulnerability, and it can lead to chronic strain on our backs and knees. Despite this, how we stand can reveal a lot about how we're feeling, and changing our stance can actually change the way we feel and how others perceive us. Learning about the benefits and drawbacks of standing can help us understand ourselves better and improve our physical and mental well-being.

Horseshoe crabs, a resilient species that has existed for over 450 million years, are facing heightened pressures due to the booming global demand for their blue blood. This blood is the only known natural source of amebocyte lysate, a clotting agent used to detect dangerous endotoxins in a variety of human medical products, including COVID vaccines. The Atlantic horseshoe crab, already considered vulnerable by conservation groups, is facing dwindling numbers due to increased bleedings by biomedical companies. As the industry shifts towards the Atlantic species, questions arise about our obligations to the animals that supply life-saving materials for human benefit.

Discover how human evolution has led to unique diseases like knee osteoarthritis, affecting millions worldwide. Professor Terence D. Capellini shares genetic research on the link between bipedalism and knee osteoarthritis, and how identifying high-risk patients at an early age can inform future therapies. Explore the Developmental and Evolutionary Genetics Lab's work and hypotheses published in his 2020 paper "Evolutionary Selection and Constraint on Human Knee Chondrocyte Regulation Impacts Osteoarthritis Risk." Join the Harvard Museums of Science & Culture's ongoing series to learn more.

Have you ever wondered how diseases spread and how they can be controlled? Are you passionate about improving public health and saving lives? If so, a career in epidemiology might be just what you're looking for! Epidemiology is the study of the distribution and determinants of health and disease in populations. It involves investigating patterns and causes of diseases, developing and implementing interventions to prevent and control them, and evaluating the effectiveness of these interventions. Epidemiologists work in a variety of settings, including government agencies, hospitals, universities, research institutions, and non-profit organizations. As an epidemiologist, you could work on a range of public health issues, from infectious diseases like COVID-19 and Ebola to chronic diseases like cancer and heart disease. You could investigate outbreaks of foodborne illness, design and evaluate vaccination programs, or study the effects of environmental exposures on health. Your work could help to inform public policy, improve health outcomes, and save lives. Typical duties of an epidemiologist include designing and conducting studies, collecting and analyzing data, interpreting results, and communicating findings to stakeholders. Epidemiologists may specialize in specific areas such as infectious disease epidemiology, environmental epidemiology, or social epidemiology. Other related fields include biostatistics, health policy, and global health. To become an epidemiologist, you typically need a graduate degree in epidemiology or a related field such as public health or biostatistics. Popular undergraduate majors include biology, chemistry, mathematics, and statistics. Helpful personal attributes for epidemiologists include strong analytical skills, attention to detail, and the ability to communicate complex information to a variety of audiences. Job prospects for epidemiologists are strong, with employment projected to grow faster than average over the next decade. There are a variety of potential employers for epidemiologists, including government agencies such as the Centers for Disease Control and Prevention (CDC) and the World Health Organization (WHO), hospitals and healthcare systems, universities and research institutions, and non-profit organizations such as the Bill and Melinda Gates Foundation and Doctors Without Borders. Some notable epidemiologists include Dr. Anthony Fauci, Dr. Nancy Messonnier, and Dr. Michael Osterholm. If you're interested in a career in epidemiology, there are many exciting opportunities to explore. With your skills and knowledge, you could make a real difference in improving public health and saving lives.