The effort of reproducing may divert energy away from repairing DNA or fighting illness, which could drive ageing, but a new study suggests that is only the case when environmental conditions are tough
Getting covid-19 for the first time slightly increased the risk of heart inflammation, blood clots and bleeding disorders among children, whereas being vaccinated against the virus was much safer and sometimes protective
In the largest genetic analysis of polycystic ovary syndrome to date, scientists have identified new variants linked to the condition, which could help us treat it more effectively
Enamel does not naturally regenerate, which can lead to painful cavities, but a gel that harnesses some of the properties of saliva could restore the hard, shiny layer to teeth
Alzheimer's-related cognitive decline could be slowed by taking as few as 3000 steps a day, possibly due to the effects of regular exercise on brain health
All over the world people are ageing more rapidly and succumbing to diseases that typically affected the elderly. But there are ways to turn back the clock on your biological age
Rats given a faecal transplant from exuberant toddlers showed more exploratory behaviour, supporting the idea that gut bacteria might affect children’s emotional development
People who receive stem cell therapy within a week of their first heart attack have nearly a 60 per cent lower risk of developing heart failure years later
During sleep, your brain cleans itself by flushing through cerebrospinal fluid to prevent damage to brain cells. If you're lacking in sleep, this happens when you are awake – and seems to cause momentary lapses in attention
The Trump administration has laid off government workers integral to major public health surveys, meaning the country will lack crucial information on births, deaths and illnesses nationwide
Among over-50s, women seem to require less exercise than men to get the same reduction in heart disease risk, suggesting health guidelines need to be updated
Fibromyalgia, which causes chronic pain all over the body, is poorly understood, but two studies – made up of millions of participants – are helping us get to the roots of the condition
Human embryos formed with in vitro fertilisation can develop genetic abnormalities in the time between genetic testing and implantation – though this may not affect their viability
Scientists found that DNA’s phosphate groups can direct chemical reactions to make the correct mirror-image form of drug molecules. This breakthrough simplifies chiral drug production, reducing waste and energy use. Using a new “PS scanning” method, the team pinpointed which DNA parts guide reactions. The approach could revolutionize green chemistry in pharmaceuticals.
Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on specific symptom networks rather than uniformly across all aspects of depression.
New research shows that the superior colliculus, a primitive brain region, can independently interpret visual information. This challenges long-held beliefs that only the cortex handles such complex computations. The discovery highlights how ancient neural circuits guide attention and perception, shaping how we react to the world around us.
Researchers have identified special immune cells in the brain that help slow Alzheimer’s. These microglia work to reduce inflammation and block the spread of harmful proteins. They appear to protect memory and brain health, offering a promising new direction for therapy.
Aalto University scientists have created a laser-based treatment that uses gentle heat to stop the progression of dry macular degeneration. The approach stimulates the eye’s natural cleanup and repair systems to protect against blindness.
A decade-long review by George Mason University researchers reveals growing evidence that neonicotinoid insecticides—the world’s most widely used class of pesticides—may harm male reproductive health. The findings, based on 21 animal studies, show consistent links between exposure and reduced sperm quality, hormonal disruption, and testicular damage.
New research suggests the COVID-19 vaccine could help children with eczema stay healthier overall. Vaccinated kids had lower rates of infections and allergies, including asthma and rhinitis, compared with unvaccinated peers. Experts believe the vaccine may help prevent allergic conditions from worsening, showing its value beyond protection from COVID-19.
Researchers found that the body’s natural recycling system, the lysosome, plays a vital role in removing the protein that drives premature aging. When this system breaks down, aging speeds up. By reactivating it, scientists were able to help cells recover their youthful behavior. The discovery opens exciting possibilities for anti-aging treatments.
A Stanford-led team has replaced toxic pre-transplant chemotherapy with a targeted antibody, allowing children with Fanconi anemia to receive stem cell transplants safely. The antibody, briquilimab, removes diseased stem cells without radiation, enabling nearly complete donor cell replacement. The approach also widens donor eligibility and could soon be applied to other bone marrow failure diseases.
Prenatal exposure to the insecticide chlorpyrifos causes widespread brain abnormalities and poorer motor skills in children. Even after a residential ban, ongoing agricultural use continues to endanger developing brains.
Scientists have pinpointed a “Big Bang” moment in bowel cancer—when cells first evade the immune system. This early immune escape locks in how the cancer will behave as it grows. The discovery could help predict which patients respond to immunotherapy and lead to new vaccine strategies
An extract from a desert berry used in traditional Chinese medicine restored insulin function and stabilized metabolism in diabetic mice. The findings hint at a powerful natural alternative for holistic diabetes treatment.
States from California to Texas say they rely on tens of millions in federal funding to help them prepare for the next pandemic, cyberattack, or mass-casualty catastrophe. The Trump administration wants to cut it.
Through shrouded bureaucratic maneuvers, White House budget director Russell Vought and DOGE have quietly upended outbreak response, HIV treatment, and dementia care in communities across America.
Amid public forums and local cries for help, states are also talking with large health systems, technology companies, and others amid intensifying competition for shares of a $50 billion fund to improve rural health.
Los extranjeros que solicitan visas para vivir en Estados Unidos podrían ser rechazados si tienen ciertas afecciones médicas, como obesidad o diabetes, según una directiva emitida el jueves 6 de noviembre por la administración Trump.
The Trump administration has directed visa officers to consider common health ailments, including obesity and diabetes, when would-be immigrants seek visas to enter the U.S.
Nov. 1 marked the start of open enrollment for 2026 health plans bought from Affordable Care Act marketplaces in most states. But this sign-up season is like no other in the health law’s 15-year history. It remains unclear, even at this late date, whether expanded tax credits launched during the pandemic in 2021 will be continued or allowed to expire, exposing millions of Americans to much higher out-of-pocket costs. In this special episode of “What the Health?” from KFF Health News and WAMU, host Julie Rovner interviews KFF vice president Cynthia Cox about the past, present, and possible future of the health law and how those who purchase ACA coverage should proceed during this time of uncertainty.
En los últimos 17 años, este fondo ha entregado casi $2.200 millones a estados, territorios, grandes ciudades y entidades para preparar los sistemas de salud ante futuras pandemias, ciberataques o tragedias con múltiples víctimas.
Small-business owners and their employees, who make up nearly half of the Obamacare marketplace, are worried about their health care and their livelihoods as insurance prices surge. Republicans, who have long opposed Obamacare, are at odds over how to respond to upset from one of their party’s most loyal constituencies.
