Growth mindset is to do with beliefs about learning and intelligence and how the brain works. When students for example are explained that effort and work and study helps the brain to grow and that the brain is malleable, their scholatic performance usually improves. This is the opposite of a fixed mindset in which the brain is viewed as static rather than dynamic and changing all the time with experience and questioning. Research on brain plasticity shows that neural networks grow new connections with the right stimulation which includes challenging oneself with new learning experiences and meeting new people for example.
The growth mindset starts with brain but then according to research it is only few reported that the brain measures is related to growth mindset. Growth mindset start when the children is studying. It measure the children's intelligence and ability to work. The growth mindset may affect the brain processes related to attention.
I have always incorporated the question into the introduction. So you can begin with "It is said that Today computers have made people more addicted to it. People spend a lot of time using it for entertainment and this is affecting their health." then continue "I fully(agree or disagree) with this statement. "