
Understanding Your
Fifth Vital Sign
In addition to the 24-hour cycle of your circadian rhythm, the female body functions on a second internal clock
The Infradian Rhythm
The infradian rhythm is a natural, recurring cycle that lasts longer than 24 hours. For most women, this presents as a menstrual cycle, which typically lasts about 28 days. This cycle includes four distinct phases:
Menstrual - Follicular - Ovulatory - Luteal
Understanding these phases can help you align your lifestyle, work, and fitness routines with your body's natural rhythms for better health and well-being.