By the time we cross 40, most of us suffer from minimal cognitive impairment and have a memory loss of very recent events or objects. This is age related and should not be confused with dementia.

This can also happen in patients who are vegetarians and vitamin B12 deficient. People often have difficulty in naming objects and name of the people.

Like a computer hangs when multi tasking is done the human mind can also hang. When you are handling multiple projects at the same time, you may experience thought blocks which is natural and not a sign of a disease. Read more