Life has become so much dependent on technology that we delegate all our mental work which we used to do earlier on technology. With the advent of technology our brain is becoming less active and slow. So we can inculcate simple exercises for ourselves in our daily lives to keep our brain active like we can remember our OTPs and feed them when we are doing some transactions which I believe we are doing a lot now a days. This acts as a simple mental exercise for our selves. We can think of other activities of the like for ourselves where we try to remember small things that act as a good exercise for our brains. These small activities can go a long way to prevent and fight back mental slow down diseases like dementia that come with age.