Menstrual Cycle & Disorders

FAQ
Premenstrual syndrome (PMS) can affect your body and emotions. Common symptoms include mood swings, bloating, fatigue, headaches, constipation or diarrhea, irritability, and trouble concentrating.
Relief from menstrual cramps can come from over-the-counter pain relievers, heat application, and gentle exercise. Your doctor may suggest hormonal birth control.
See a doctor if you soak through a pad or tampon every hour for several hours, bleeding lasts more than a week, or you pass large clots. These could be signs of a condition such as fibroids or a bleeding disorder.
Causes of irregular periods include hormone imbalances, stress, weight changes, and medical conditions including diabetes and polycystic ovary syndrome.

Kara Smythe, MD
Medical Reviewer
Kara Smythe, MD, has been working in sexual and reproductive health for over 10 years. Dr. Smythe is a board-certified fellow of the American College of Obstetricians and Gynecologists, and her interests include improving maternal health, ensuring access to contraception, and promoting sexual health.
She graduated magna cum laude from Florida International University with a bachelor's degree in biology and earned her medical degree from St. George’s University in Grenada. She completed her residency in obstetrics and gynecology at the SUNY Downstate Medical Center in Brooklyn, New York. She worked in Maine for six years, where she had the privilege of caring for an underserved population.
Smythe is also passionate about the ways that public health policies shape individual health outcomes. She has a master’s degree in population health from University College London and recently completed a social science research methods master's degree at Cardiff University. She is currently working on her PhD in medical sociology. Her research examines people's experiences of accessing, using, and discontinuing long-acting reversible contraception.
When she’s not working, Smythe enjoys dancing, photography, and spending time with her family and her cat, Finnegan.

Justin Laube, MD
Medical Reviewer
Justin Laube, MD, is a board-certified integrative and internal medicine physician, a teacher, and a consultant with extensive expertise in integrative health, medical education, and trauma healing.
He graduated with a bachelor's in biology from the University of Wisconsin and a medical degree from the University of Minnesota Medical School. During medical school, he completed a graduate certificate in integrative therapies and healing practices through the Earl E. Bakken Center for Spirituality & Healing. He completed his three-year residency training in internal medicine at the University of California in Los Angeles on the primary care track and a two-year fellowship in integrative East-West primary care at the UCLA Health Center for East-West Medicine.
He is currently taking a multiyear personal and professional sabbatical to explore the relationship between childhood trauma, disease, and the processes of healing. He is developing a clinical practice for patients with complex trauma, as well as for others going through significant life transitions. He is working on a book distilling the insights from his sabbatical, teaching, and leading retreats on trauma, integrative health, mindfulness, and well-being for health professionals, students, and the community.
Previously, Dr. Laube was an assistant clinical professor at the UCLA Health Center for East-West Medicine and the David Geffen School of Medicine at UCLA, where he provided primary care and integrative East-West medical consultations. As part of the faculty, he completed a medical education fellowship and received a certificate in innovation in curriculum design and evaluation. He was the fellowship director at the Center for East-West Medicine and led courses for physician fellows, residents, and medical students.
Niya Jones, MD, MPH
Medical Reviewer
Niya Jones, MD, MPH, is a board-certified internal medicine physician with a special interest in cardiology, particularly as it relates to health care disparities and women's health. Dr. Jones received her medical degree and master of public health degree from Yale University.

John D. Six, MD
Medical Reviewer

John Paul McHugh, MD
Medical Reviewer
John Paul McHugh, MD, is an obstetrician-gynecologist and lifestyle medicine specialist in southern California. He has always placed wellness at the center of his work, in both delivering babies and improving practice standards. Dr. McHugh believes that bringing lifestyle medicine to the center of health and wellness empowers patients to make the change they seek and enjoy the benefits of true wellness.
He is a graduate of Harvard Medical School and the Massachusetts Institute of Technology and a fellow of the American College of Lifestyle Medicine. He served as a department chair at Scripps Mercy Hospital in San Diego and is now the chair-elect for the American College of Obstetricians and Gynecologists for California.
He has published several articles in the American Journal of Lifestyle Medicine and served as a peer reviewer for many articles. He contributed to the first textbook of lifestyle medicine in women's health: Improving Women's Health Across the Lifespan.
Lindsey Marcellin, MD, MPH
Medical Reviewer
Lindsey Marcellin, MD, MPH is an internal medicine specialist with extensive clinical experience in multiple practice settings. Dr. Marcellin is a past medical director of both fee-for-service and community free clinics. She is a director and medical team leader for Solar Light for Africa, Ltd., a non-profit group providing solar energy systems to health care facilities in Africa, and has led three medical assistance teams to Uganda. She graduated from Eastern Virginia Medical School, and completed post-graduate training at Georgetown University. She has a master's degree in public health from Johns Hopkins Bloomberg School of Public Health, with a concentration in infectious diseases and international health. She writes on and reviews a wide range of medical and public health issues.

Sylvie Tremblay, MSc
Medical Reviewer

Heidi Green, MD
Medical Reviewer
In her private practice, Dr. Green provides psychiatric consultative services and offers an office-based buprenorphine maintenance program to support recovery from opioid addictions. She enjoys offering lifestyle medicine consultation to those interested in maximizing their emotional and physical health by replacing unhealthy behaviors with positive ones, such as eating healthfully, being physically active, managing stress, avoiding risky substance use, improving sleep, and improving the quality of their relationships.
At the opioid treatment programs, Green serves as medical director, working with a team of counselors, nurses, and other medical providers. The programs provide evidence-based treatment (including buprenorphine, methadone, and naltrexone) for persons suffering from opioid use disorders (such as addictions to heroin, fentanyl, or prescription pain medications).
Previously, Green has worked in community health and mental health settings where she provided consultation to behavioral health teams, integrated care teams, substance abuse intensive outpatient programs, and a women’s perinatal residential program. She also enjoyed supervising residents in her prior role as assistant consulting professor to the department of psychiatry at Duke University School of Medicine. During her training at the UNC department of psychiatry, she was honored to serve as chief resident, clinical instructor of psychiatry, and psychotherapy supervisor.
Green is passionate about the years we can add to our life and the life we can add to our years through lifestyle medicine! She focuses on maintaining her own healthy lifestyle through work-life balance, contemplative practices, and eating a plant-based diet. She finds joy through a continual growth mindset, shared quality time with her partner, and time spent outdoors backpacking and mountain biking.
- Menstrual Cycle. Office on Women’s Health. February 22, 2021.
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