# The Baseline Month: what to measure before buying more longevity gear

Most longevity purchases happen in the wrong order. The Baseline Month puts friction back where it belongs: measure the silent risks, name the weakest pillar, then decide whether any device has earned a place.

- Canonical: [https://agewell.guide/guides/baseline-month](https://agewell.guide/guides/baseline-month)
- Markdown: [https://agewell.guide/guides/baseline-month.md](https://agewell.guide/guides/baseline-month.md)
- Updated: 2026-06-12
- Verdict: START HERE
- Price range: $50-1,500+
- Reading time: 9 min

## Quick answer

Before buying expensive longevity gear, get a baseline: home blood pressure, ApoB or particle risk, Lp(a) once, HbA1c/glucose, body composition, grip or strength benchmark, VO2/cardio proxy, sleep regularity and a clear 7-day next move.

## Agewell verdict

Start here. The cheapest useful purchase is often the measurement that talks you out of the expensive one.

## The shortlist

### First device: Validated upper-arm BP cuff

- Price: $50-130
- Product page: [/guides/best-validated-blood-pressure-monitor](/guides/best-validated-blood-pressure-monitor)

The most useful cheap device in the house. Measure the same way repeatedly and bring the device to a clinician visit once.

### Trend device: Smart scale

- Price: $30-400
- Product page: [/guides/best-smart-scale](/guides/best-smart-scale)

Useful for weight trend and adherence. Not a DEXA replacement.

### Triage tool: Agewell Readiness Check

- Price: free
- Product page: [/readiness](/readiness)

Names the weak pillar and gives a 7-day plan before you buy more gear.

## Week 1: silent clinical risks

Measure home blood pressure calmly on multiple days. Ask your clinician whether ApoB or LDL particle number belongs in your next panel, and measure Lp(a) at least once in adulthood. Add HbA1c or glucose context when metabolic risk is unclear.

This is not a self-treatment plan. It is a visibility plan. Medication, symptoms and abnormal results belong with a clinician.

## Week 2: body and capacity

Choose a body-composition anchor: DEXA if the number matters, smart scale if trend is enough. Add a grip dynamometer or strength benchmark and one cardio measure: lab VO2 max if available, field test if not.

The purpose is not to collect trophies. It is to see whether the next lever is strength, engine, fat loss, blood pressure, lipids, glucose or sleep.

## Week 3: behavior data

Use a tracker only if it changes one behavior: bedtime, alcohol, steps, Zone 2, training restraint or recovery days. Oura, WHOOP, Garmin, Apple Watch and Fitbit can all work if the job is defined.

If the device creates anxiety and no decision, stop paying for the dashboard.

## Week 4: one next move

Run the Readiness Check, name the weakest pillar and choose one 7-day intervention. Then decide whether any equipment purchase directly supports that intervention.

A red light panel, sauna, weighted vest or compression boots is easier to evaluate when it has a job. Without a job, it is decoration.

## FAQ

### What should I measure first for longevity?

Start with blood pressure, ApoB or particle risk, Lp(a) once, HbA1c/glucose, body composition, strength or grip, cardio fitness and sleep regularity.

### Do I need a full-body scan for a baseline?

Not automatically. Full-body scans can be useful for selected buyers with follow-up ownership, but most people should start with cheaper, actionable measures.

### What should I buy before a tracker?

A validated upper-arm blood-pressure cuff is often the better first device. A tracker comes next if it changes behavior.

## Sources

- [American Heart Association: Life’s Essential 8: activity, nicotine, sleep, weight, cholesterol, glucose and blood pressure](https://www.heart.org/en/healthy-living/healthy-lifestyle/lifes-essential-8)
- [AHA physical activity recommendations: 150 minutes/week aerobic activity and 2+ strength days](https://www.heart.org/en/healthy-living/exercise-and-physical-activity/fitness-basics/aha-recs-for-physical-activity-in-adults)
- [AHA newsroom: 2026 lipid guidance: measure Lp(a) at least once in adulthood](https://newsroom.heart.org/news/accaha-issue-updated-guideline-for-managing-lipids-cholesterol)
- [JAMA Network Open: Cardiorespiratory fitness is inversely associated with long-term mortality](https://pubmed.ncbi.nlm.nih.gov/30646252/)

## Next

- [Readiness Check](https://agewell.guide/readiness)
- [What’s a good VO2 max by age?](https://agewell.guide/guides/good-vo2-max-by-age)
- [What’s a good grip strength by age?](https://agewell.guide/guides/good-grip-strength-by-age)
- [Trackers & diagnostics](https://agewell.guide/categories/trackers-diagnostics)
- [Best validated blood-pressure monitor](https://agewell.guide/guides/best-validated-blood-pressure-monitor)
- [Longevity purchases to skip](https://agewell.guide/guides/what-to-skip)