May 22, 2026
Scientists have found that the levels of phosphatidylcholine, the most abundant lipid in mitochondrial membranes, decline with age, driving mitochondrial aging in worms and possibly humans. Supplementing the lipid helped in an in vitro experiment [1]. What drives mitochondrial aging? Mitochondria are the cell's energy-generating organelles, and their decline is a hallmark of aging [2]....
January 02, 2024
Scientists might have found support for the antagonistic pleiotropy theory of aging, which suggests that evolution selects some genetic traits that are associated with shorter lifespans because they also help us reproduce [1]. Evolution needs you to reproduce, not live long Shouldn’t evolution favor longer lifespans, so that animals have more time to procreate? To...