By Mataeo Smith Neurologists asserted that one’s brain undergoes cognitive decline around the age of 50 and this process persists for years to come. “The cortex ― outer layer of the brain ― becomes thinner, the myelin sheath surrounding the fibers of neurons may begin to degrade, and receptors don’t fire as quickly,” explained Dr. Dylan Wint, a neurologist and neuropsychiatrist at the Cleveland Clinic. In their 50s, most people are still fairly competent, although they may start to detect some changes in their cognitive abilities. “In your 50s, cognitive functions such as on-demand recall of n…