The definition of maladroit is awkward or showing a lack of skills. An example of a maladroit person is an employee who cannot accomplish the simplest tasks of the job. noun
The historic view is that once brain cells are damaged or killed, they do not regenerate. Yet, research over the last 20 years is showing substantial evidence of cell regeneration, particularly in those under 40 year of age.
Even without a major event such as a stroke, cerebrovascular disease can impair the brain's normal function by reducing its blood flow. Damaged brain cells do not regenerate on their own, and so it is critical to contain and repair damage once it occurs, and equally critical to prevent it before it happens.