Putting plants in the workplace could be one way to celebrate Earth Day, but research shows that it may also promote staff well being.

CNN: Office foliage for feel good factor

He says that many people don't understand that the way they structure their thoughts, their relationships, and their physical conditioning will - over time - either promote well-being or contribute greatly to sickness and depression.

CNN: Mental Health Q&A from CNN health

Colin Powell to promote childhood well-being.

FORBES: Marguerite W. Kondracke

An international research team at Oxford University found that when people laugh hard, the kind that leaves them almost physically exhausted with tears in their eyes, the human body triggers the release of endorphins that help reduce the feeling of pain and promote feelings of general well being.

FORBES: Laugh Your Way To Loving Your Job

In fact, according to the National Endowment for the Arts, exposure to the arts tends to promote education, health and well-being and economic prosperity for at risk youth across the board.

FORBES: 12 Days of Charitable Giving 2012: Free Arts NYC

The OECD describes its mission as to "promote policies that will improve the economic and social well-being of people around the world" and "provides a forum in which governments can work together to share experiences and seek solutions to common problems".

BBC: OECD asked by Leighton Andrews for Wales education review

In October 2010, an international symposium on urban futures and human and urban well-being elaborated plans for a new three-year initiative to promote sustainable urban development and improve the relationship between cities and the ecosystems of which they are a part.

UNESCO: Urban connections of biosphere reserves

Moreover, we continue to promote the critical role fathers can play in enhancing the intellectual, emotional, and financial well-being of our sons and daughters.

WHITEHOUSE: Presidential Proclamation -- National Family Week, 2012