BMJ Group Apr 9 2025 Relaxation techniques may help lower high blood pressure-at least in the short term-but the longer term effects are unclear, finds a pooled data analysis of the existing research published in the open access journal  BMJ Medicine . And the risk of bias in the existing body of research means that further, more rigorously designed and longer studies are needed to confirm whether these techniques have a constructive role in the treatment of high blood pressure, conclude the