I AM YOU is hosted by Dr. Nitza I. Alvarez, MD, FACC — board-certified cardiologist, Women’s Heart Specialist, and bestselling author. Each episode shares real stories and expert insights to help women protect the heart that carries them through every stage of life — and step into their power as the CEO of their own health. In this Ask the Heart Doctor-style episode, Dr. Alvarez tackles a symptom many women quietly struggle with: hair thinning after 35. If you’ve noticed more hair in your brush, a wider part, or a thinner ponytail and wondered, “Is this stress? My shampoo? Or is something wrong with me?” — this episode reframes hair loss as more than a cosmetic issue. It can be a signal from the body. Dr. Alvarez explains why hair changes are common during perimenopause and menopause, when shifting estrogen levels, relative androgen changes, sleep disruption, stress, insulin resistance, and metabolic changes can all affect the hair growth cycle. She also explains why, from a cardiologist’s perspective, symptoms like hair thinning, fatigue, weight changes, and sleep problems should not be looked at in isolation — because this stage of life is also a metabolic and cardiovascular transition. With clarity and compassion, she breaks down: Why hair loss can feel so emotional for womenHow estrogen helps support the hair growth cycleWhy perimenopause can shift the balance between growth and sheddingWhy hair follicles are sensitive to hormones, blood flow, nutrition, sleep, and stressCommon myths about hair loss, including the belief that “nothing can be done”Minimum tests to discuss with your doctor, including iron levels, thyroid function, lipid panel, and metabolic markersFive practical steps to support hair and overall health: sleep, protein and nutrient-dense foods, strength training, stress management, and working with clinicians who understand women’s midlife physiologyThis episode is a reminder that hair loss is not vanity, and it is not something women should be told to simply accept. Hair can be information — biology growing in plain sight. If your body is changing, listen early, ask better questions, and work with a clinician who understands the connection between hormones, metabolism, and women’s heart health. Because becoming the CEO of your own health starts with taking your symptoms seriously. Visit NitzaMD.com Follow @NitzaMD on Instagram and Facebook