Morning Discovery2026-08-25In depression, the brain’s new-neuron pipeline stallsA Nature Medicine map of nearly half a million hippocampal cells found that adult neurogenesis stalls in major depression: stem-like cells remain, but fewer become young neurons.2
Morning Discovery2026-08-24Around age 100, a rare cancer-killing T cell expands in supercentenariansA Cell Reports study found that a rare hybrid immune cell expands around age 100, forming large clones that may help explain how some people stay healthy into extreme old age.1
Morning Discovery2026-08-23Human brain organoids keep a molecular record of time for five yearsHuman brain organoids cultured for five years continued to mature, and several molecular tests showed that the cells retained a measurable record of time spent outside the body.
Morning Discovery2026-08-21A parasite protein helps Toxoplasma survive the chemical stress of a crowded host cellA new Cell study identifies TgPRO, a parasite protein that helps Toxoplasma gondii manage oxidative stress, nutrients, and energy when it crowds inside host cells.1
Morning Discovery2026-08-19Your brain’s immune crew gets reinforcements from your blood as you ageA new Stanford Nature study shows blood-borne immune cells enter the aging human brain and become microglia — rewriting a long-held idea about how the brain’s defenses work.12