What the 28 Day Cycle Knows
That the 24 Hour Clock Forgot
That the 24 Hour Clock Forgot
In 1729, Jean-Jacques d’Ortous de Mairan noticed that even in darkness, the leaves of the Mimosa pudica still opened and closed on schedule. Without sunlight, this heliotrope plant kept time with an internal metronome. Humans also live by multiple internal clocks: the circadian rhythm - a 24-hour loop of wake, sleep, and alertness–and infradian rhythms like the 28-day hormonal cycle underpinning the menstrual cycle.
Breaking Molds and Building Apps: A Woman in STEM on Skincare, Purpose and FemHack
I’m Rucha - a STEM girl and former engineer and tech consultant turned creator and entrepreneur. I’ve always loved using technology to create real impact. For years, I struggled with something deeply personal: acne. I knew first hand how frustrating it was to navigate skincare advice. Dermatologists pushed expensive treatments. Influencers promoted one size fits all solutions. And well-meaning friends recommended routines that worked for them but not for me. So I thought: What if AI could help?