Exercising on a regular basis has long been known to have positive effects on health. But do you really to spend long hours in the gym to get favourable results?

Not actually, says a recent research. The study has revealed that working out daily for just 20 minutes goes a long way in improving your memory. The same helps you reduce your dependence on energy inducing drinks and products containing caffeine.

Researchers conducted the study by analysing working memories, which is the brain function that allows people to remember everyday activities like reading, of 30 participants who did and did not regularly consumed caffeine. The subjects then either had caffeinated drinks or went for a 20-minute walk.

After 12 hours, researchers tested participants’ memories again and found that both exercise and caffeine helped their working memory, but only those test subjects who exercised were better able to fight the effects of caffeine withdrawal.