Aging gracefully—and slowly—sounds nice. But new research reveals that brain cells experience a sudden and serious increase in aging in midlife. And scientists might know why: a gene called interleukin-33 (IL33), already suspected as crucial to the aging process, might be key. The study, which is in mice, raises speculations about reversing the effects of aging, even temporarily, by targeting that underlying gene.
A chance to remember? Forgotten memories have been reawakened in mice with Alzheimer’s disease, suggesting that the condition may not actually destroy our memories, but instead impair our ability to recall them.