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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.

All guides

201 guides · Page 8 of 17
Longevity & PerformanceLongevity

A low HRV reading: what your wearable can tell you

Heart rate variability measures timing between beats. The method, recording length, and your symptoms matter more than a single app score.

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

Tracking strength through perimenopause

A consistent strength record can make changes easier to discuss. Grip readings, everyday function, and body weight answer different questions.

3 sources · PubMed / PMCRead · 2 min →
Weight & Metabolic

GLP-1 digestive changes and the gut microbiome

Bloating or bowel changes do not reveal what your gut bacteria are doing. Known medication effects and early microbiome research answer different questions.

5 sources · NIH, PubMed / PMCRead · 2 min →
Trust & Safety

Heart palpitations on a GLP-1: what needs attention

A small average heart-rate increase in trials does not explain every racing or irregular heartbeat. New palpitations need their own assessment.

4 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

Melatonin for night-shift sleep: what it can and cannot answer

Melatonin affects sleep timing, but shift-work studies have limitations. Sleep opportunity, light, schedule and other sleep problems still need attention.

3 sources · NIHRead · 2 min →
Trust & Safety

Dizziness when standing on a GLP-1: what it can mean

Standing-related dizziness can involve a blood-pressure drop, dehydration or another cause. Timing and related symptoms help guide the assessment.

4 sources · NIHRead · 2 min →
Longevity & PerformanceLongevity

Oral or IV iron after childbirth: what guides the decision?

Iron treatment depends on confirmed deficiency, symptoms, severity, and response. An infusion is not an automatic answer to postpartum fatigue.

3 sources · NIHRead · 2 min →
Weight & Metabolic

Dehydration during GLP-1 treatment: signs to recognize

Vomiting, diarrhea and low fluid intake can lead to dehydration. Learn which changes are useful clues and which require immediate help.

3 sources · NIHRead · 2 min →
Weight & Metabolic

GLP-1 weight loss and muscle: what deserves attention

Weight loss can include lean tissue as well as fat. Nutrition, strength training and changes in everyday function all matter during treatment.

3 sources · NIH, PubMed / PMCRead · 2 min →
Biomarkers & Labs

Reading an estradiol result after menopause

What an estradiol result measures, why the reference range matters and why one hormone number does not explain every symptom.

Read · 2 min →
Weight & Metabolic

GLP-1 medicines and “food noise”: what studies measure

Less hunger and fewer food thoughts are related experiences. Appetite studies help explain them, while showing why the effect can change over time.

4 sources · PubMed / PMC, NIHRead · 2 min →
Weight & Metabolic

Sleep changes after starting a GLP-1: what to pay attention to

Digestive symptoms, fatigue and an existing sleep problem can overlap. Describe the change in sleep rather than assuming one cause.

3 sources · NIHRead · 2 min →