Memories are made of synaptic regulators, new research reveals

PEOPLE who stay “sharp” long into old age may have brains that have learned a new way to store memories, new research suggests.

The octogenarian grandmother who possesses a “mind like a razor” may not necessarily owe her mental abilities to a youthful brain, scientists believe.

Instead she may have by-passed the expected declines of ageing by switching to a different memory mechanism.