A curated library of peer-reviewed research supporting the claims in Why Do I Feel Like This? — pulled directly from Dr. Allen's own references. Each card links to the study on PubMed.
Xu Y, Derakhshan A, Hysaj O, et al. A large meta-analysis defining what truly optimal thyroid function looks like, measured by long-term cardiovascular outcomes — not just statistical reference intervals.
Read on PubMed →Bhasin S, Brito JP, Cunningham GR, et al. The leading clinical guideline used by hormone physicians worldwide to diagnose and treat low testosterone — a foundational reference for the andropause chapter.
Read on PubMed →Avis NE, Crawford SL, Greendale G, et al. The landmark SWAN study showing that hot flashes and night sweats commonly last more than 7 years — directly supporting the perimenopause and menopause chapters.
Read on PubMed →The current professional consensus on modern hormone therapy — including the timing hypothesis, individualized treatment, and reframed cardiovascular and breast cancer risk profiles cited throughout the book.
Read on PubMed →Canaris GJ, Manowitz NR, Mayor G, Ridgway EC. A landmark population study showing how commonly thyroid dysfunction goes undiagnosed in patients with "normal" routine labs — central evidence for the Gray Zone framework.
Read on PubMed →Teede HJ, Tay CT, Laven JJE, et al. The current global consensus on PCOS — covering prevalence, the Rotterdam Criteria, and long-term risks for diabetes, cardiovascular disease, and mood disorders. Basis for the PCOS chapter.
Read on PubMed →A short email when a new piece is published — and your launch-day book discount.
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