Issue · Apr 2026New this week: evidence-first longevity readsThe newsletter — one essay, Sunday morningsArchive access — every article, free to readPodcast coming soon — NotebookLM sessionsLetters from readers — reply to any emailIssue · Apr 2026New this week: evidence-first longevity readsThe newsletter — one essay, Sunday morningsArchive access — every article, free to readPodcast coming soon — NotebookLM sessionsLetters from readers — reply to any email

Aging.

Evidence-led reading on aging from the HL Benefits desk. Long reads, careful guides, and the boring-but-true positions the research keeps settling on.

In this section
14longreads
Newest
Apr 212026
Section since
2026archive
Reading time
~8min average
This week's longread

SGLT2 Inhibitors for Longevity: The Diabetes Drug With Anti-Aging Potential

SGLT2 inhibitors extended mouse lifespan by 14% and cut human cardiovascular mortality by 38%. The science behind their anti-aging potential.

Read the articleHL Benefits Editorial · Apr 21, 2026
SGLT2 Inhibitors for Longevity: The Diabetes Drug With Anti-Aging PotentialPhotograph · HL Benefits
§ 01

The latest, in long form.

Browse all 14
Rapamycin Side Effects and Safety: What Bryan Johnson's Experience Tells Us
CoverAging

Rapamycin Side Effects and Safety: What Bryan Johnson's Experience Tells Us

A research-backed guide to rapamycin's side effects at anti-aging doses, from blood glucose changes to immune impacts, plus what Bryan Johnson's five-year experiment revealed.

Apr 19
Bryan Johnson Blueprint Protocol: What the $2M/Year Anti-Aging Regimen Actually Involves
Aging

Bryan Johnson Blueprint Protocol: What the $2M/Year Anti-Aging Regimen Actually Involves

A detailed breakdown of Bryan Johnson's Blueprint protocol, separating evidence-backed interventions from expensive experiments.

Apr 6
Senolytic Supplements: Fisetin, Quercetin, and Clearing Zombie Cells
Aging

Senolytic Supplements: Fisetin, Quercetin, and Clearing Zombie Cells

A research-backed guide to senolytic supplements that target senescent zombie cells, covering fisetin, quercetin, clinical trial data, and safety.

Mar 26
Urolithin A: The Mitochondrial Anti-Aging Supplement Most People Haven't Heard Of
Aging

Urolithin A: The Mitochondrial Anti-Aging Supplement Most People Haven't Heard Of

Urolithin A activates mitophagy, the cellular process that clears out damaged mitochondria. Clinical trials show real benefits for muscle and overall aging.

Mar 24
From the editorApr letterHL Benefits MagazineHL Benefits Editorial Team

We started this section because the conversation about aging had become unbearable — too loud, too certain, too often selling something. The boring middle — what the evidence actually supports, repeated across decades, written without a brand to defend — is not a position you can monetize, but it is the position the research keeps quietly settling on.

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Companion sections.

All sections →
160 articles · ongoing

Health

A companion section to aging, with its own evidence-led reading list.

Read the section
71 articles · ongoing

Food & Nutrition

A companion section to aging, with its own evidence-led reading list.

Read the section
28 articles · ongoing

Fitness

A companion section to aging, with its own evidence-led reading list.

Read the section
§ 03

Definitive guides.

All guides →
Spermidine for Autophagy and Anti-Aging: The Compound Hidden in Everyday Foods
Guide

Spermidine for Autophagy and Anti-Aging: The Compound Hidden in Everyday Foods

Spermidine activates autophagy, your body's cellular recycling system, and research links higher dietary intake to reduced cardiovascular disease and longer lifespan.

Mar 24
Telomere Length: Can You Actually Slow Cellular Aging?
Guide

Telomere Length: Can You Actually Slow Cellular Aging?

Telomeres protect your chromosomes from damage during cell division. Learn what science says about preserving telomere length.

Mar 23
A note on evidence

A claim about aging is not a study. A study is not a meta-analysis. A meta-analysis is not a guideline. The article doesn't fit on a label.

HL Benefits Editorial Team · on the standards we hold ourselves to
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On our desk this week.

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