# Tommy & James > Independent women's health publication for ages 30 to 55. Plain-English answers > about the reproductive transition, cycles, sleep, nutrition and strength, written > from primary research. Not a medical provider, not affiliated with any agency. ## Guides and site pages - [About Tommy & James](https://tommyandjames.net/about/): Tommy & James is an independent women's health publication covering ages 30 to 55, the decade most health writing skips. It is written by one named… - [How we research](https://tommyandjames.net/how-we-research/): Every claim on this site traces to clinical guidance, peer-reviewed research or a government health body, opened and read at the source. Consumer health publishers are… - [The perimenopause symptoms nobody warns you about](https://tommyandjames.net/perimenopause-symptoms-nobody-warns-you-about/): Perimenopause produces symptoms far outside the reproductive tract because estrogen receptors sit in the inner ear, oral tissue, joints, skin, blood vessels and immune cells. That… - [How to read your own menstrual cycle](https://tommyandjames.net/read-your-menstrual-cycle/): Your cycle has four phases, each run by a different hormone and each producing a change you can measure. ACOG puts the normal adult length at… - [Why women wake up in the middle of the night](https://tommyandjames.net/waking-up-at-night/): Night waking at a consistent hour is usually the overnight cortisol rise meeting less sedative tone. Progesterone and allopregnanolone fall in the late luteal phase. Estradiol… - [Low ferritin without anemia: the guide women are not given](https://tommyandjames.net/low-ferritin-without-anemia/): You can be genuinely iron deficient with a textbook-normal blood count. Iron depletion runs through three stages and anemia is the third, so ferritin drops long… - [What actually changes about strength training in perimenopause](https://tommyandjames.net/strength-training-perimenopause/): Perimenopause changes the hormonal environment that skeletal muscle operates in. Estrogen receptors are present in muscle tissue, estrogen influences contractile force, and the decline that defines… - [Contact](https://tommyandjames.net/contact/): Email hello@tommyandjames.net. That is the only contact channel, and no form on this site asks for your name, email or health information. Corrections backed by a… - [Medical disclaimer](https://tommyandjames.net/disclaimer/): Tommy & James is not a medical provider and is not affiliated with any clinic, laboratory, supplement brand, telehealth service, insurer or government health agency. Everything… - [Disclosure](https://tommyandjames.net/disclosure/): Tommy & James carries no affiliate links, no display advertising, no sponsored posts and no paid placements. No supplement brand, laboratory, clinic or telehealth service has… - [Privacy policy](https://tommyandjames.net/privacy-policy/): Tommy & James has no accounts, no logins, no newsletter and no comment section, so there is nowhere on the site to enter personal or health… - [Terms of service](https://tommyandjames.net/terms/): These terms cover reading, quoting and reusing Tommy & James content. Short quotations with attribution and a link are welcome; republishing articles in full is not.… ## Cycles and Hormones - [Why your cycle gets shorter in your 30s and 40s](https://tommyandjames.net/cycle-getting-shorter/): A cycle that shortens from 29 days toward 25 is usually the follicular phase contracting, not the luteal phase. As antral follicle counts fall, early-follicular FSH… ## Nutrition and Labs - [Normal hemoglobin, low ferritin: why heavy periods hide iron deficiency](https://tommyandjames.net/low-ferritin-normal-hemoglobin/): Yes. Iron depletion runs in stages and hemoglobin falls last. Storage iron goes first, which ferritin measures. Transport iron goes next, which transferrin saturation measures. Only… ## Perimenopause - [Tinnitus and perimenopause: why ears ring when estrogen drops](https://tommyandjames.net/perimenopause-tinnitus/): Perimenopause and tinnitus overlap in time, but no causal link is established. Estrogen receptors have been found in cochlear tissue, and human studies of menopause and… ## Sleep and Energy - [Waking at 3am in your luteal phase: the progesterone and cortisol handoff](https://tommyandjames.net/luteal-phase-3am-waking/): Waking between 2am and 4am in the second half of your cycle is not random. Progesterone's metabolite allopregnanolone enhances GABA, the brain's primary inhibitory neurotransmitter. When…