HAVIT Blog

Science-backed guides on habits, sleep, nutrition, and movement.

LatestBest Calorie Counter Apps in 2026 (Free and Paid): Every Major App, Reviewed One by OneEvery number in a calorie app is an estimate, so choose on consistency rather than claimed accuracy. Data provenance matters more than database size — and check what happens after the number.

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Mounjaro Side Effects: Nausea, Sulfur Burps & Timeline (2026)

Mounjaro's most common side effects are gastrointestinal — nausea, diarrhea, decreased appetite, vomiting, and constipation — usually mild and worst during dose increases. Many users also report sulfur ("egg") burps. Rare but serious risks include pancreatitis, gallbladder disease, and severe delayed stomach emptying.

Why Taking Vitamin D3 Without K2 Might Be Sending Calcium to the Wrong Places

D3 increases calcium absorption while K2 activates the proteins (osteocalcin and MGP) that help direct calcium into bone and keep it out of arteries. Trials show K2 can slow bone loss and improve arterial stiffness, but fracture benefits of the combination aren't proven.

Grip Strength Predicts Mortality Better Than Blood Pressure: Training Guide by Age

Your handgrip strength is one of the strongest predictors of how long you'll live—and unlike genetics, you can actually train it.

Post-COVID Return to Exercise: The Gradual Protocol That Prevents Setbacks

Wait until symptoms have resolved (early athlete guidance advised 10 days' rest and 7 symptom-free days), then return in gradual phases. Chest pain, palpitations, fainting, or unusual breathlessness mean stop and get evaluated.

Autophagy Fasting Protocol: Why the 16-Hour Threshold Is Probably Wrong for You

There's no human evidence that autophagy switches on at 16 hours—or at any other fixed hour. Direct human measurements are few and mixed: a 36-hour fast barely moved muscle markers, while six months of intermittent fasting modestly raised blood autophagic flux.

Should You Take Creatine While on Wegovy? The Muscle-Sparing Strategy Worth Knowing

Creatine plus resistance training added about 0.8 kg (1.8 lbs) of fat-free mass on average across 143 trials, though most weren't done during weight loss and none tested it with Wegovy. It's a low-cost add-on to adequate protein and strength training, not a replacement.

Bile Acid Malabsorption Diet for Chronic Diarrhea: Fat Modification and Fiber Strategies That Actually Work

Diet for bile acid malabsorption centers on lowering fat—in one clinic study, intake fell to about 42 g a day and urgency, bloating and stool frequency improved—with soluble fiber and meal timing as practical extras. The evidence is still limited, and many people also need medication.

Mounjaro Dose Increase Schedule: How Slower Titration May Ease Nausea

The Mounjaro label calls for at least 4 weeks at each dose, and most GI side effects in trials occurred during dose escalation. A phase 2 study linked smaller, slower increases to less nausea, but no trial has yet tested whether a 6-8-week schedule matches standard-schedule weight loss. Pace changes are a decision to make with your prescriber.

BPPV Epley Maneuver at Home: The Complete Step-by-Step Self-Treatment Guide for 2026

In a randomized self-treatment trial, 95% of people with posterior canal BPPV who did a modified Epley maneuver at home were free of positional vertigo after one week—correct head angles and timing are what make it work.

GLP-1 and Metformin Together: Why Two Old Friends Beat Going Solo

GLP-1 medications and metformin lower blood sugar through different mechanisms, which is why they're commonly used together; most GLP-1 diabetes trials tested them as add-ons to metformin.

Random Muscle Twitching All Over Body: When It's Benign and When to Worry

Random muscle twitching throughout the body is almost always benign fasciculation syndrome—annoying but harmless, especially when strength remains normal.

Magnesium Glycinate vs Threonate for Sleep: Which Form Actually Crosses Your Blood-Brain Barrier?

Magnesium threonate crosses the blood-brain barrier more efficiently, but glycinate's GABA-enhancing glycine may produce faster sleep onset for most people.