Few things in medicine are as routine, or as life-saving, as a blood transfusion. Patients receive them after accidents, during surgery, and through cancer treatment, and most never give it a second thought. Now a group of researchers is asking whether donated blood could carry more than blood. A new review in The Lancet examines whether proteins…
A heart attack seems like a one-way event: a blockage, injured muscle, and damage that stays. Yet the heart has a built-in repair system, and scientists thought they knew how it worked. A new study says they had the source wrong. The same research team then found a way to strengthen that repair in animals,…
Most of us use tomato paste for flavor and little else. A recent clinical trial tested what happens when it becomes a daily habit, and the effects appeared in two places: on cognitive tests and on brain scans. The changes were modest and the evidence is early, but the results raise a bigger question about…
Most people file heart disease under problems for later in life, something to think about in their 50s or 60s. New research on young adults suggests that timeline deserves a second look. It also points to a condition that links your heart to other systems in your body, one that most people have never heard…
Vitamin D is one of the most widely used supplements, and most people take it for their bones. A new study suggests it may also be tied to something else: how well people with early memory problems perform on a cognitive test. The finding is small, and it comes with a catch you should know…
What if one treatment could change how your body handles cholesterol for good? Researchers have now tested that idea in people for the first time and followed the results for a full year. The findings are early and come from a small group, but they raise a question that matters to anyone who has ever…
Ask most people what drives climate change and they’ll point to cars and smokestacks. Few would name what’s on their dinner plate. Yet a study in the journal Climate Policy argues that food production belongs in that conversation, and that leaving it out puts our climate targets at risk. The researcher behind it isn’t asking anyone to…
Alzheimer’s disease has resisted decades of research, so a study reporting improved memory and behavior after just two injections deserves a careful look. The results come from mice, not people, and that distinction matters. But the way this treatment works is unusual, and it raises a question researchers have debated for years. Here’s what the…
We spend a lot of time debating which foods help us live longer and very little time asking when we should eat them. A team of researchers followed a large group of American adults over several years to look at exactly that, and the answer was not as simple as “earlier is always better.” Some…
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