Topic
Longevity and healthy aging
The biology of aging and the evidence for a longer healthspan, separated from the hype.
This page collects every article by Dr. Damon Tojjar in this topic. For all topics see browse by topic, and for the source-anchored record see damontojjar.com/record.
Articles in this topic (12)
- Biological-Age and Epigenetic-Clock Tests: What They Actually Measure
A biological-age or epigenetic-clock test estimates how old your body looks at the molecular level, usually from a blood or saliva sample, and reports a number that...
- Grip Strength as a Biomarker of Aging
How firmly you can squeeze a handgrip meter turns out to be one of the more informative numbers a clinician can collect. In the Prospective Urban Rural Epidemiology...
- Healthspan Versus Lifespan, and Why the Difference Is the Point
Lifespan is how many years you are alive. Healthspan is how many of those years you spend in good function, free of the diseases and disabilities that shrink a life...
- How Much Protein Do Older Adults Actually Need?
The official adult reference intake for protein is 0.8 grams per kilogram of body weight per day, and there is no separate, higher figure formally set for older...
- NAD Boosters: Evidence Versus Marketing
Human trials of the two most marketed NAD+ precursors, nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN), point to one consistent finding: they raise...
- Night Shift Work and Cancer Risk: How IARC Graded the Evidence
What Group 2A means for night shift workIn 2019 a Working Group convened by the International Agency for Research on Cancer (IARC) classified night shift work as...
- Rapamycin for Aging: What Human Trials Actually Show
The asymmetry at the heart of rapamycinRapamycin reliably extends lifespan in mice, one of geroscience's most reproducible findings, but the human evidence is thin....
- Sarcopenia: How Muscle Loss Became a Diagnosable Condition
Sarcopenia became a diagnosable condition the moment a committee agreed on numbers. In 2019, the European Working Group on Sarcopenia in Older People published a...
- Cellular Senescence and Senolytics: Where the Human Evidence Actually Stands
Cellular senescence is one of the most credible ideas in modern aging biology, and senolytics are the most talked-about drugs meant to act on it. Here is the honest...
- The Biology of Aging, Explained: The Hallmarks Behind Why We Age
Bodies age because damage and dysregulation accumulate faster than our repair systems can keep up. There is no single clock ticking down and no one broken part....
- VO2max and Mortality: What the Association Really Means
In the largest analysis of its kind, higher cardiorespiratory fitness tracked with dramatically lower long-term mortality, and the survival advantage kept rising...
- Why Two Biological Age Tests Can Give You Different Answers
Why Two Biological Age Tests Can Give You Different AnswersTwo biological age tests can disagree because most of them measure different things, are calibrated...