STRESS MEMORY

Mice that feel a sudden stress lose their ability to remember where food is. Scientists found that both male and female mice show this loss, but the brain changes are different for each sex. In females, the part of the brain called the dorsal hippocampus turns up a protein called NMDA receptor

Plants do not instantly snap back to their normal state after a tough season. They keep biochemical signs of past hardships that change how they act when new challenges appear. This lasting imprint is called biochemical memory. It shows up as shifts in protective molecules, balance of oxidants and a