22.11.2025 - A new commentary led by Johan Rockström, Director of the Potsdam Institute for Climate Impact Research (PIK), concludes that the world has missed an important decade needed to keep the Ea...

Nature Metabolism, Published online: 24 November 2025; doi:10.1038/s42255-025-01414-7We show that the size of the mitochondrial NAD+ pool in hepatocytes is regulated by SLC25A51 expression in vivo. We further find that selectively increasing mitochondrial NAD+ is sufficient to improve liver regeneration after partial hepatectomy, equivalent to the effect of systemic high-dose NAD+ precursor supplementation.

A scientist tried to discredit the theory that ultra-processed foods are killing us. Instead, he overturned his own understanding of obesity.

Background Amino acids are critical to tumor survival. Tumors can acquire amino acids from the surrounding microenvironment, including the serum. Limiting dietary amino acids is suggested to influence...

Nature Medicine asks experts to explain the research priorities for the field of GLP-1 receptor agonists such as semaglutide, from sex differences to how they might treat addiction.

A new study detected dangerous chemicals in a variety of household items. But experts say the health risks aren’t clear-cut.

Every farm, even the scenic ones with red barns and rolling hills, is a kind of environmental crime scene, an echo of whatever wilderness it once replaced.

YouTube video by Al Jazeera English

SciElo, other platforms work to help journals reach readers around the world

This handout photograph taken and released by the Ukrainian Presidential press service on December 7, 2024, shows France’s President Emmanuel Macron (C), US President-elect Donald Trump (L), and

This viewpoint reviews the empirical evidence regarding the association between social media use and well-being, including life satisfaction and affective well-being, and the association between socia...