Category Biology/Biotechnology

You’re standing at a bus stop, waiting for a ride that seems like it will never come. At first, you’re hopeful that it will be here any second. But as the minutes laggardly drag on, doubt creeps in. Should you keep waiting, or is it smarter to start walking or call for a ride?

“It’s a classic dilemma. “Do you persist with the belief that the bus is on its way, or do you cut your losses and move on to something else?” asks Joe Kable, a psychologist in the School of Arts & Sciences at the University of Pennsylvania. The question isn’t just whether you have the patience to wait, he says. “It’s about understanding when it pays off to stick with something and when cutting your losses is the better choice.”

Kable draws parallels to two competing ideas ...

CNC-Center for Neuroscience and Cell Biology researchers in Portugal report that regular, moderate coffee consumption (three cups per day) not only contributes to a longer life but also enhances the quality of those additional years by reducing the risk of major age-related diseases and maintaining better overall health.

Coffee consumption’s perception has shifted from potentially harmful to potentially beneficial over the last several decades. Scientific understanding of the underlying mechanisms by which coffee’s primary components, namely caffeine and chlorogenic acids, influence fundamental biological processes and are understood to have alertness, antioxidant and anti-inflammatory properties, though how these might be involved in aging remains unclear.

Fructose consumption has increased considerably over the past five decades, largely due to the widespread use of high-fructose corn syrup as a sweetener in beverages and ultra-processed foods.

New research from Washington University in St. Louis shows that dietary fructose promotes tumor growth in animal models of melanoma, breast cancer and cervical cancer. However, fructose does not directly fuel tumors, according to the study published Dec. 4 in the journal Nature.

Instead, WashU scientists discovered that the liver converts fructose into usable nutrients for cancer cells, a compelling finding that could open up new avenues for care and treatment of many different types of cancer.

“The idea that you can tackle cancer with diet is intriguing,” said Gary Patti, the Michael a...

Chronic fatigue syndrome creates conditions where pathogen-killing immune T cells become exhausted, according to a new Cornell University study.

The study’s authors knew the immune system was dysregulated in patients with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) but wondered which parts shift with the condition.

A systematic exploration revealed that key CD8+ T cells displayed one of the most pronounced signatures of dysregulation, with signs of constant stimulation that lead to an exhausted state, a condition that is well-studied in cancer.

“This is an important finding for ME/CFS because now we can examine the T cells more car...