Clear, sourced guidance on food, movement, sleep and stress — free to read.
523 articles with this tag
Using acetaminophen (Tylenol) within safe limits, and why the margin is narrower than people assume. Key takeaways Adult maximum: no more than 4,000 m...
Continue Reading : New to Acetaminophen Safety? Start Here
Herbal and dietary supplements as a cause of drug-induced liver injury. Key takeaways Recognized causes: some herbal products, bodybuilding and weight...
Continue Reading : Supplements and the Liver for Beginners: Where to Start
Primary liver cancer, which develops mostly in livers already damaged by another condition. Key takeaways Main risk factor: cirrhosis from any cause S...
Continue Reading : The First Steps With Liver Cancer Risk
Hypothyroidism: the thyroid producing too little hormone, slowing many body processes. Key takeaways Main test: TSH, with free T4 if abnormal Pattern:...
Continue Reading : Starting Out With Underactive Thyroid
Hyperthyroidism: the thyroid producing too much hormone, speeding up many body processes. Key takeaways Main test: low TSH, with high T4 or T3 Most co...
Continue Reading : Overactive Thyroid: A Beginner-Friendly Start
Blood tests measuring TSH and thyroid hormones to assess thyroid activity. Key takeaways TSH: rises when the thyroid is underactive, falls when overac...
Continue Reading : Starting Out With Thyroid Function Tests
Nodules or swelling in the thyroid gland, most of which are benign. Key takeaways Most thyroid nodules: benign Assessment: examination, thyroid blood...
Continue Reading : The First Steps With Thyroid Lumps
A common hormonal condition involving irregular ovulation, high androgen levels and metabolic features. Key takeaways Diagnosis: usually two of three:...
Continue Reading : New to Polycystic Ovary Syndrome? Start Here
The effect of hormonal change on mood across the menstrual cycle, pregnancy and menopause . Key takeaways Premenstrual dysphoric disorder: a severe fo...
Continue Reading : New to Hormones and Mood? Start Here
The adrenal hormones released in response to stress , and the rare conditions affecting them. Key takeaways "Adrenal fatigue": not a recogni...
Continue Reading : Cortisol and Stress Hormones: A Beginner-Friendly Start
Vitamin D 's role as a hormone regulating calcium, and its interaction with the parathyroid glands. Key takeaways RDA, adults 19-70: 15 mcg (600...
Continue Reading : Vitamin D and Hormones: A Beginner-Friendly Start
The wider health effects of hormonal birth control beyond preventing pregnancy. Key takeaways Combined pill: linked to lower ovarian and endometrial c...
Continue Reading : Hormonal Contraception and Health for Beginners: Where to Start Menopausal hormone therapy: replacing estrogen, with a progestin if you have a uterus, to treat menopausal symptoms. Key takeaways Most effective trea...
Continue Reading : New to Hormone Replacement Therapy? Start Here
Too little hemoglobin to carry oxygen efficiently, from many possible causes. Key takeaways Diagnosed by: low hemoglobin on a complete blood count (CB...
Continue Reading : Anemia for Beginners: Where to Start
Too little vitamin B12 for red blood cell production and nerve health. Key takeaways Common causes: pernicious anemia, vegan diet, metformin, long-ter...
Continue Reading : Vitamin B12 Deficiency for Beginners: Where to Start