Medicine
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Checked: 04.10.2026 01:49. Sources are checked every 30 minutes.
Women are turning to testosterone, but what does the science actually say?
A recent BBC report described women posing as men to obtain testosterone gel, hoping to improve their menopause symptoms because female testosterone products are not easily available to them. But why is the appetite for this predominantly male hormone…
This protective enzyme could help stop fatty liver disease from getting worse
Scientists have identified an enzyme that may act as a natural defense against the worsening of fatty liver disease, which affects an estimated 100 million Americans. The enzyme, called UBE2N, helps liver cells clear away damaged mitochondria and break down…
Mapping parasite mitochondria reveals ancient pathways and dozens of potential new drug targets
Cut the power, and the machine stops. That was part of the motivation behind a four-year effort to map all the proteins in the mitochondria—often called the powerhouse of the cell—of the parasites that cause sleeping sickness, giardiasis, leishmaniasis and…
Leucine does more than build muscle. It powers up your cells
The essential amino acid leucine can boost cellular energy production by protecting key proteins on mitochondria from being destroyed. The discovery reveals a new connection between nutrition and metabolism that could eventually lead to new approaches for…
Human tau seeds trigger disease-specific shapes in mouse brains, new study finds
Tau is a protein that occurs naturally in the brain. It is essential for proper neuron development and for how neurons communicate with each other. The same protein, however, when misshapen or misfolded, can act as a driver of neurodegenerative diseases.…
Your gut may be making a molecule that raises Alzheimer’s risk
Scientists have linked a gut bacterial compound called ImP to greater Alzheimer’s risk, harmful brain protein buildup, and faster cognitive decline. The finding raises the possibility that reducing ImP in the blood could one day help slow or prevent dementia.
Discovery reveals how nervous system helps control length of protective nerve coatings
Researchers at Upstate Medical University have identified a key mechanism that helps determine the length of myelin, the protective coating that surrounds many nerve fibers and allows signals to travel efficiently through the nervous system.
Vitamin C linked to fewer deaths in blood disorder trial
Vitamin C may do more than support the immune system. In a phase 2 trial of people with precancerous or low risk blood cancers, daily vitamin C did not slow abnormal cell growth, but it was linked to favorable changes in inflammation and fewer serious…
Climate change affects Indigenous children's health worldwide, review of 53 studies finds
Indigenous children across the globe are experiencing significant climate-related health impacts, ranging from malnutrition and infectious diseases to effects on mental health and cultural well-being and problems before birth, according to a new study.
Nearly 6 in 10 people with high blood pressure don’t know they have it
Nearly 6 in 10 people with high blood pressure in a large England study had never been diagnosed or treated, and half of those already taking medication still had elevated readings. Researchers say a more proactive approach to finding and controlling…
Brain scans show shared changes during depression treatment and distinct antidepressant effects in some patients
Major depressive disorder (MDD) is a common mental health condition primarily characterized by persistent low mood or loss of interest in daily activities. While several medications are available to treat depression, finding one that works for each patient…
Cancer stem cells have an “energy addiction” scientists may be able to exploit
High-risk MDS stem cells appear to have an unexpected “energy addiction,” relying far more heavily than healthy blood-forming cells on a molecule called NAD. Disrupting this energy pathway selectively weakened the cancer-driving cells, revealing a potential…
Injectable foam prototype could seal deep wounds and help prevent amputations
A caulking gun filled with silicone compound is set to enable doctors and nurses in the future to seal even deep wounds caused by blast injuries—thereby preventing amputations and reducing mortality among patients with severe wounds.
Even one strength training session a week could make a difference
Strength training may be one of the most powerful tools for staying independent as you age. Age related muscle loss, known as sarcopenia, can make everyday tasks harder while increasing the risk of falls, fractures, and loss of mobility. Research shows that…
Menopause is a major health milestone, yet health records barely track it—new research
Anyone with ovaries who lives long enough will experience menopause. While menopause is a natural transition in midlife, it can strongly affect a person's quality of life and their current and future risk of heart disease, osteoporosis and other issues. So…
Weak sunlight can still damage your DNA, scientists warn
Weak sunlight can still damage skin DNA if you spend enough time outdoors, according to a landmark Australian study. Even UV doses too low to cause visible redness triggered cellular damage that could accumulate over time and contribute to skin cancer risk.
Research reveals a specific brain circuit implicated in OCD
Treatment for obsessive-compulsive disorder (OCD), a mental health condition characterized by distressing, uncontrollable thoughts and repetitive behaviors, has centered on psychotherapy and medication to curb symptoms. New research identifying a previously…
Scientists may have found a “unifying theory” of chronic fatigue
Scientists found that five seemingly unrelated conditions, including long Covid, ME/CFS, and PTSD, may disrupt many of the same biological networks involved in immunity, metabolism, and cellular energy. The findings could help explain their shared symptoms…
Context & explainers
AI in healthcare: from promise to informed decisions
A practical guide explores the opportunities and limitations of medical AI.
MedicineHealth data: the foundation of trust in AI
Why data governance is becoming part of health infrastructure.
An editorial selection dated by its primary sources. Earlier stories are collected under Science & technology.