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THE VELRI LIBRARY

Understand your health. Know what to ask.

Guides to treatments, lab results and common health questions. Sources are listed in every article.

Longevity & Performance

59 guides · Page 5 of 5
Longevity & PerformanceLongevity

A longevity plan or a supplement stack: what are you paying for?

How to assess the evidence, testing and follow-up behind a longevity service before paying for a plan.

3 sources · FDARead · 2 min →
Longevity & PerformanceLongevity

Frequent travel and fatigue: what is worth tracking?

A useful travel-fatigue record captures sleep timing, symptoms and daily function. Wearable scores can add context when their limits are understood.

3 sources · PubMed / PMCRead · 2 min →
Longevity & PerformanceLongevity

NAD+ and B vitamins for travel fatigue: what the evidence answers

Travel fatigue, vitamin deficiency and NAD+ marketing are different questions. A biological role alone does not establish an energy benefit.

4 sources · FDA, NIHRead · 2 min →
Longevity & PerformanceLongevity

Postpartum fatigue: iron, thyroid and B12 questions

Postpartum fatigue can overlap with iron deficiency, thyroid changes and B12 deficiency. Symptoms and history help determine which tests are relevant.

5 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

Several flagged lab results: what deserves attention first?

A useful review weighs symptoms, established risk and whether a result changes care. Not every flagged biomarker has the same meaning or urgency.

Read · 2 min →
Longevity & PerformanceLongevity

Persistent fatigue: is it workload, poor sleep or something else?

Ongoing fatigue can have several causes. A useful evaluation connects the symptom pattern with sleep, health history, and selected tests.

2 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

Postpartum energy and labs: building a useful picture over time

Delivery history, sleep, symptoms and prior results give postpartum lab comparisons meaning. A single draw is only part of that picture.

5 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

How to bring wearable and lab results to a health review

How to turn wearable trends, home tests and lab reports into a useful provider conversation without treating every number as a diagnosis.

2 sources · FDARead · 2 min →
Longevity & PerformanceLongevity

Jet lag: when the sleep schedule explains the fatigue

Crossing time zones can disrupt sleep and alertness. Learn what a travel timeline explains and when persistent fatigue needs another look.

4 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

Night-shift fatigue: what a circadian assessment looks at

A circadian evaluation considers sleep timing, symptoms, environment and other sleep disorders. Hormone measurements are only one possible part.

3 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

NAD+ and NMN: what human research actually measures

Raising an NAD-related blood marker is different from improving fatigue or extending life. Human trials answer narrower questions than many aging claims.

3 sources · PubMed / PMCRead · 2 min →