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.
The prayers that essentially compose the Rosary are arranged in sets of ten Hail Marys with each set preceded by one Lord's Prayer and followed by one Glory Be. During recitation of each set, known as a decade, thought is given to one of the Mysteries of the Rosary, which recall events in the lives of Jesus and Mary.