The New Yorker har en artikel Why Walking Helps Us Think, som tar upp den gamla hederliga promenadens positiva effekter på vår hjärna:

Many experiments have shown that after or during exercise, even very mild exertion, people perform better on tests of memory and attention. Walking on a regular basis also promotes new connections between brain cells, staves off the usual withering of brain tissue that comes with age, increases the volume of the hippocampus (a brain region crucial for memory), and elevates levels of molecules that both stimulate the growth of new neurons and transmit messages between them.

Men hur mycket promenerar vi egentligen nuförtiden? Enligt en annan artikel hos BBC, är promenaden på utdöende.

Walking is a luxury in the West. Very few people, particularly in cities, are obliged to do much of it at all. Cars, bicycles, buses, trams, and trains all beckon.

”Förr i tiden” gick alla, överallt. Många kända författare och tänkare hyllar promenaden som ett sätt att tänka och få inspiration. C. S. Lewis gjorde exempelvis en två timmars eftermiddagspromenad till sin dagliga rutin.

Boken Brain Rules pratar också om vikten av att promenera eller springa:

From an evolutionary perspective, our brains developed while we walked or ran as many as 12 miles a day. The brain still craves this experience. That’s why exercise boosts brain power (Brain Rule #2) in sedentary populations like our own. Exercisers outperform couch potatoes in long-term memory, reasoning, attention, and problem solving tasks.

Alltså, om du vill få inspiration, bra idéer eller lösa knepiga problem; ut och gå. Det hjälper.