Cognition is a natural gift that needs to be enhanced by exercise, complements or drugs. Same time there is lot of factors that contribute to affect the cognitive power in human sensory system. The people who are sensitive and take any situation serious put extra stress on brain to remove it in this way many sensory organs in our body become defective that eventually affect our cognition. This stress weakens our memory and other mental tools. Some time facing such a state constantly, the patient becomes a psyche case and it is necessary for him/her to consult immediate a psychiatrist or psychologist who diagnose the real factor of such a deficiency and prescribe drugs to remove or to relieve of this nuisance. Usually, people donít take care of putting stress on their brain but it may in the long run result in a total flop of memory etc.