Others suggest that "the biogenetic sourcing of limerence determines its limitation, ordinarily, to a two-year span", that limerence generally lasts between 18 months and three years; but further studies on unrequited limerence have suggested longer durations. In turn, a limerent may only experience a single limerent episode, or may experience "serial" episodes, in which nearly one's entire mature life, from early puberty through late adulthood, can be consumed in successive limerent obsessions.
