Preventive health
Which tests to ask for, how often, and what to do with the results.
How to Prepare for a Blood Test: Fasting Rules, Timing and Common Mistakes
Fasting for the wrong number of hours, testing at the wrong time of day, or forgetting a recent medication can all quietly skew your results. Here's how to prepare properly.
23 September 20262 min read
Family History and Lab Tests: What to Screen for If Diabetes or Heart Disease Runs in Your Family
A family history of diabetes or heart disease changes what — and how often — you should be screening for, well before symptoms appear.
22 September 20261 min read
Vitamin B12 Deficiency: Symptoms, Testing and Why Vegetarians Are at Higher Risk
B12 deficiency develops slowly and mimics many other conditions. Here's what to watch for, how it's tested, and why plant-based diets carry higher risk.
21 September 20261 min read
Iron Deficiency Without Anemia: The Ferritin Test Most People Skip
You can have low iron stores and normal hemoglobin at the same time. Here's why ferritin — not just hemoglobin — is the test that catches it early.
20 September 20261 min read
Full Body Checkup at 30 vs. 40 vs. 50: What Changes and Why
The right checkup at 30 isn't the same as the right checkup at 50. Here's how screening priorities shift decade by decade.
19 September 20261 min read
Annual Health Checkup Guide: Which Tests Are Actually Worth Doing Every Year
Annual checkup packages vary widely between labs. Here's a practical, evidence-informed list of tests worth prioritizing for a general yearly screen.
18 September 20261 min read