Korean research suggests that tai chi can improve lower urinary tract symptoms (LUTSs), quality of life (QOL) and testosterone levels in patients with benign prostate hypertrophy (BPH). Fifty-six elderly patients with BPH were randomised to either 12 weeks of tai chi group or a control group. After 12 weeks of treatment, the tai chi group showed significant improvement in LUTS (34%) and QOL (24%), compared with baseline. In addition, the results showed a significant effect of tai chi on testosterone levels, but no significant effect on insulin or glucose. (Tai chi for lower urinary tract symptoms and quality of life in elderly patients with benign prostate hypertrophy: a randomized controlled trial. Evid Based Complement Alternat Med. 2012;2012:624692. Epub 2011 Oct 3).