TY - JOUR T1 - <em>Mens Sana</em> JF - British Journal of General Practice JO - Br J Gen Pract SP - 435 LP - 435 DO - 10.3399/bjgp17X692609 VL - 67 IS - 663 AU - Roger Jones Y1 - 2017/10/01 UR - http://bjgp.org/content/67/663/435.abstract N2 - The Roman poet Juvenal coined the famous phrase when he wrote ‘Orandum est ut sit mens sana in corpore sano’ — You should pray for a healthy mind in a healthy body — around the end of the first century AD. Nearly 2000 years later, we are still wrestling with dualism, struggling to understand the components of the biopsychosocial model of illness, and striving for parity of esteem between the sciences of the mind and biomedicine, slowly uncovering the immensely complicated relationships between mental and physical health and illness. In this issue of the BJGP, a number of articles approach this complex topic. The value of physical exercise in relieving the symptoms of arthritis and in reducing perinatal distress and postnatal depression seem clear, yet a survey of GPs suggests that the assessment of levels of activity, encouragement to exercise, … ER -