Univ of Penn. study examines people who speak in tongues with MRI which proves the speech center is not working.www.keithbarr.com. If you want to know more about speaking in tongues look at my video about speaking in tongues. After several years and over 3,000 comments many of these questions have been answered over and over again in these post. Therefore some of your comments man not be posted. Particularly offensive and remarks with profanity will probably not be posted. For other articles of scientific study on prayer view these links, Univ of Indiana study that prayer works http://newsinfo.iu.edu/news/page/norm... and view this NY Times article http://www.nytimes.com/2006/11/07/hea.... It is through the power of the Holy Ghost that we are able to heal the sick. View my other videos of healing testimonies on www.youtube/revkeithbarr.