A cognitive support system is disclosed. The system includes a data collection subsystem to obtain personal data and contextual data related to the sufferer, from conversations of one or more family members, one or more close friends and one or more co-workers. The system includes a cognitive modelling subsystem to analyse the personal data and the contextual data to build a personalized support model. The system includes a cognitive support subsystem to learn one or more patterns from the personal data and the contextual data based on the personalized support model, verify one or more learnt patterns based on the personal data and the contextual data gathered from the conversations, identify one or more instances of cognitive dysfunction based on the one or more learnt patterns and a current personal data of the sufferer and generate an intervention for the sufferer upon identifying one or more instances of cognitive dysfunction.