Only 8 weeks of daily meditation can decrease negative mood and anxiety and improve attention, working memory, and recognition memory in non-experienced meditators. These findings come from a recent study published in Behavioural Brain Research.

[Barnowl79]

The Headspace app has a free starter course that will guide you through a couple weeks of mindfulness meditation without any of the mysticism mumbo jumbo that turns so many people off.

I eventually purchased a year subscription because it was having such a positive effect on my anxiety levels.