All Articles
Find health guides and all information on metabolic health to feed the curious you.
Heart Rate Zones Explained: Zone 1–5 for Fat Burn vs Cardio
Heart rate zones explained simply. We break down Zones 1–5, how to calculate yours, and the truth about the fat-burning zone vs cardio.
Jun 10, 2026
What Is Perimenopause? Symptoms, Stages, and What to Expect
What is perimenopause? We break down the symptoms (cycle changes come first, not hot flashes), when it starts, how long it lasts, and when to see a …
Jun 09, 2026
What's a Good Resting Heart Rate by Age?
What's a good resting heart rate by age? We break down real Ring data from 500,000+ members — and why RHR barely changes with age.
Jun 08, 2026
Is Sucralose Bad For You? What the Research Shows
Does sucralose raise blood sugar? We break down what the research shows about sucralose, from its effect on insulin and your gut to whether it's safe.
Jun 08, 2026
Is Your Excessive Hunger Polyphagia? When It Signals Insulin Resistance
Still hungry after a full meal, day after day? We break down polyphagia — when excessive hunger signals insulin resistance or diabetes, and when to …
Jun 08, 2026
Types of Sugar Explained: How Each One Affects Your Body
What's the difference between glucose, fructose, sucrose, and HFCS? Dr. Mukul Mittal walks you through each type of sugar and what each one does in …
Jun 05, 2026
How to Get More Deep Sleep: 9 Tactics Backed by Research
How to get more deep sleep? Dr. Mukul Mittal walks you through 9 evidence-backed tactics — what the research shows and what actually works.
Jun 05, 2026
What Is Erythritol? Calories, Glucose Effect, and Safety
What is erythritol — and is it safe? Dr. Mukul Mittal walks you through the glucose effect, calories, side effects, and what the research shows.
Jun 05, 2026
Preeclampsia Symptoms: Early Warning Signs in Pregnancy
What are the early warning signs of preeclampsia? Dr. Mukul Mittal walks you through the symptoms, risk factors, and when to call your healthcare …
Jun 05, 2026