New Delhi, Aug. 1 -- Most people have experienced a headache after a stressful day, felt dizzy after skipping a meal or forgotten where they kept their keys. In many cases, these symptoms are harmless and improve with adequate sleep, hydration, stress reduction or simple lifestyle changes.

The concern arises when such symptoms become frequent, progressively worsen or begin to interfere with work, daily activities or quality of life. The brain has an extraordinary ability to compensate for disease, and by the time symptoms become obvious, the underlying condition may already have progressed.

Recognizing the warning signs early can therefore make a significant difference, says Dr Sweta Singla, Consultant and Head - Movement Disorder & Neu...