Background
He was born in Portsmouth, United Kingdom on 15 March 1953 to Doctor James Brennan, a medical doctor, and Joan Brennan, a teacher.
He was born in Portsmouth, United Kingdom on 15 March 1953 to Doctor James Brennan, a medical doctor, and Joan Brennan, a teacher.
He was educated at Street John's College in Southsea, Hampshire and Highbury Technical College, Portsmouth.
In 1976 Brennan developed painful back problems and sciatica. After several years of pain, and having tried various orthodox and complementary treatments, he eventually found relief by having Alexander Technique lessons in 1984. He qualified in 1989 and joined STAT. Brennan established his practice in Totnes, Devon, and began lecturing and teaching around the United Kingdom and Europe.
He began writing his first book about the Technique in 1991, and since then has written four more books
In 1997 he moved to Galway, Ireland, and established the first Alexander Technique training course in Ireland the following year. In 2007 the training course became approved by STAT United Kingdom.
Brennan is a founding member of the Irish Society of Teachers of the Alexander Technique (ISATT), which was launched in June 2004.