This is a wonderful experiment that was done by IKEA to illustrate how plants (and by extension, all living beings) respond to words and the intention behind them. Please watch this short video to see the results of the experiment:
If words can have such a profound effect on our health, what are our own thoughts doing to our bodies?
We are about 70% water. Dr. Masaru Emoto has demonstrated with his research that water responds to intention - it responds to thoughts and words:
For more information on Dr. Emoto's work: https://thewellnessenterprise.com/emoto/