Professor Sanjeev Sabhlok gives an account of the overall harms of the lockdowns, based upon Australian research involving Cost Benefit Analysis. Usually in health-related areas use is made of quality adjusted life years (QALY) to get an idea of what policies are costing in terms of the effects upon lives. More recently, in fact since 2019, there has been an advanced analysis given by Professor Paul Frijters, WELLBY (wellbeing year), which measures things such as anxiety, lost motivation, depression and other psychological qualities, all of which needs to be considered in a cost benefit analysis of lockdowns. School lockdowns impact upon the education of children and hence their future earning capacity, and this can be converted into WELLBY.