In summary, the relative refractory period is a time in which the neuron can fire an action potential, but it needs a greater stimulus. During an action potential, voltage-gated sodium channels open to let in positive ions - sodium. These depolarize the cell.
On average, reciting five Mysteries of the Rosary typically takes about 15-20 minutes depending on whether the optional prayers are also recited. Additionally, some people may take longer than 20 minutes if they decide to devote extra time for reflection and meditation on any of the Mysteries.
These prayers are called morning prayer (shacharit), afternoon prayer (minchah) and evening prayer (arvith or maariv ). Our Sages tell us that the custom of praying three times a day was originally introduced by our Patriarchs, Abraham, Isaac and Jacob.