Brain drain

Relying on tech to “do it for you” can make us mentally lazy. 

Research by University College London into the brains of trainee taxi drivers showed that those who had passed the famous “Knowledge” test to learn routes across the city’s 25,000 streets and thousands of places of interest had a greater volume of grey matter in their posterior hippocampus — the nerve cells in the brain where processing takes place — than when they started.