Wellness is the state of being in good physical and mental health — and, in its modern commercial sense, the active pursuit of it through lifestyle choices: good diet, regular exercise, adequate sleep, stress management, and preventive care. The concept extends health beyond the absence of disease to a positive sense of vitality and balance. As an industry, wellness spans fitness, nutrition, mindfulness apps, spa treatments, and a vast supplement market — some evidence-based, some pure marketing. The useful core is uncontroversial: the daily habits that keep body and mind functioning well. The excess is the moralising of health and the sale of expensive solutions to problems that walking, vegetables, and sleep already solve.