# regular ovulation is a sign of health > - Regular ovulation is a sign of health > - only possible when endocrine & reproductive systems functioning normally > - Crucial for maintaining optimal health during reproductive years > [[The Fifth Vital Sign by Lisa Hendrickson-Jack#^kkxxz]] > Accordingly, normal ovulatory activity during reproductive years can be considered a sign of health, because it implies adequate endocrine and gonadal function.[[(Vigil et al., 2017)#^ul4xu]] > Ovulation has been recognized as an event linked with reproduction; however, recent evidence supports the role of ovulation as a sign of health.[[(Vigil et al., 2017)#^67z41]]