Some peahens start laying fertile eggs after their first birthday. Peacocks take more time to become mature than the peahens. Usually it takes about 3 years to gain maturity of a peacock. After three years their tail also matures.
Patients with disorders such as Parkinson's disease, Alzheimer's disease or multiple sclerosis may use a neurologist as their principal care physician. In a consulting role, a neurologist will diagnose and treat a neurological disorder and then advise the primary care physician managing the patient's overall health.
Neurologists can help treat a wide variety of conditions, including birth defects, like spinal bifida and medical conditions like strokes, epilepsy, Parkinson's disease, and Alzheimer's disease. He or she can also treat tumors on the brain and spinal cord, and trauma, like concussions and strokes.