Understand your hormones.
Optimize your cycle. Feel like yourself.
From fertility and cycle tracking to perimenopause support and PCOS risk, Kyronix connects your genetic blueprint to your hormonal health — giving you answers that generic wellness apps can't.
Download Free on iOSSix areas where your genetics shape your hormonal health
Kyronix analyzes the variants that directly affect your cycle, fertility, perimenopause experience, and long-term hormonal health — and shows you what to do about them.
Cycle Tracking & HRV
Your heart rate variability shifts predictably across your hormonal cycle — but how much depends on your genetics. Variants in COMT and CYP19A1 influence estrogen and dopamine levels throughout the month, shaping your energy, recovery, and HRV baseline in ways a generic app won't explain.
Hormonal Balance
Feeling off — irritable, tired, bloated — even when your labs look "normal"? Your CYP1B1 and COMT variants affect how quickly your body produces and clears estrogen metabolites. Slow COMT (Val158Met) can amplify PMS, breast tenderness, and mood swings. Knowing your genotype is the first step to a targeted fix.
Fertility & Pregnancy
Planning to conceive? MTHFR C677T and A1298C variants reduce the conversion of folic acid to its active form (5-MTHF) — the version your body actually uses. Impaired folate metabolism raises homocysteine and is linked to neural tube defects and early pregnancy loss. Methylated folate supplementation is often the solution.
Perimenopause Support
Hot flashes, disrupted sleep, brain fog — perimenopause hits differently for different women. Your ESR1 (estrogen receptor alpha) and CYP19A1 (aromatase) variants influence how powerfully your cells respond to falling estrogen levels, and how your body converts androgens to estrogen as ovarian output declines.
Bone Density
Bone loss accelerates in the years around menopause, but your genetic baseline matters too. VDR (vitamin D receptor) variants affect how efficiently you absorb and use vitamin D — essential for calcium regulation and bone remodeling. ESR1 variants also directly affect bone mineral density responses to estrogen.
PCOS Risk
Polycystic ovary syndrome has a strong genetic component. Variants affecting insulin sensitivity (PPARG, TCF7L2) and androgen metabolism (CYP19A1) are associated with PCOS risk and presentation. Understanding your metabolic and hormonal genetics can help guide diet, exercise, and treatment decisions.
How your hormonal cycle affects your energy, sleep, and performance
Your cycle isn't just a reproductive rhythm — it's a monthly wave of hormonal changes that affects your HRV, sleep quality, workout capacity, and mood. Understanding where you are in your cycle — and how your genetics amplify or dampen each phase — is the key to training, recovering, and living smarter.
Rising estrogen boosts HRV, improves sleep quality, and primes your muscles for high-intensity work. This is typically your peak performance window. Variants in ESR1 influence how powerfully your cells respond to rising estrogen — some women feel this surge more than others.
A brief LH surge drives peak energy, strength, and motivation. Core temperature rises slightly, which can briefly dip HRV. Your COMT genotype influences how quickly catecholamine levels stabilize after the surge — slow COMT variants may extend the peak feeling.
Progesterone dominates. HRV tends to decrease, sleep architecture shifts, and many women experience reduced performance capacity and mood changes. Slow COMT variants can amplify PMS symptoms. Knowing this is normal for your biology — not a failure — is half the battle.
HRV often hits its lowest point. Iron loss can compound fatigue, especially in women with HFE variants that reduce iron absorption efficiency. Kyronix contextualizes your low readiness scores during this window so you stop wondering what's wrong.
Your biology deserves better than guesswork
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