Wellness

Preventive care that compounds.

Preventive care is the highest-ROI category of medicine. These guides distill what's actually evidence-based — and what to skip — across the most common wellness questions.

Frequently asked

Which preventive screenings actually matter?
Blood pressure, lipid panel, colorectal cancer screening starting at 45, cervical and breast cancer screening per USPSTF, and immunizations. Most other 'wellness' panels have limited yield.
How much sleep do adults need?
Most adults need 7–9 hours. Consistency of timing matters as much as total duration — irregular schedules independently predict worse cardiometabolic markers.
Is daily multivitamin use worthwhile?
For most non-deficient adults, evidence is weak. Targeted supplementation (vitamin D, B12 if vegan, iron if menstruating with low stores) is better-supported.
What's the single most effective stress intervention?
Regular aerobic exercise is the most-studied intervention with broad effect across mood, sleep and cognitive function — outperforming most apps and supplements.