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. A patient with insomnia may also be referred to a neurologist. A neurologist is a physician with in-depth training in nervous systems disorders. An imbalance in brain chemistry can bring on a host of negative symptoms that include insomnia. Neurologists also treat restless leg syndrome, a common cause of insomnia.