Gratitude: The Latest Self-help Trend that Could Change Your Life http://www.telegraph.co.uk/women/womens-health/11706352/Gratitude-the-latest-self-help-trend-that-could-change-your-life.html
Gratitude is Good for You http://corespirit.co.uk/mind/gratitude-is-good-for-you-heres-what-science-says