A new U.S. Army study shows that waist circumference and belly fat are far stronger determinants of circulating testosterone levels than aging.


An image from a previous publication authored by Dr. Karl E. Friedl, one of the U.S. Army scientists on the current study. 

Aging &amp; Longevity

<p>Model: Eight-week-old C57BL/6J mice treated with 300 mg/kg/day of D-galactose by subcutaneous injections for eight weeks</p>
<p>Dosage: 100 mg/kg/day of NMN in drinking water for eight weeks and 5 × 10 5 hUC-MSCs suspended in 150 µL of PBS via tail vein injection on the first day of weeks five through seven</p>


NMN Enhances Stem Cell Therapy’s Effects on Immune Aging in Latest Study

Combining NMN with umbilical cord–derived stem cells improved motor and cognitive function while reducing markers of immune aging in mice with chemically induced aging.

(An image of human umbilical cord-derived mesenchymal stem cells under a microscope | NAD.com)

NMN with a stem cell therapy reduced markers of immune aging and improved coordination and memory performance in mice with chemically induced aging-like changes.

Immunity

Life Biosciences reports preliminary visual-field improvements in two of three glaucoma patients treated with the experimental therapy developed by Dr. David Sinclair’s Harvard team, ER-100.

The Future of Longevity: Could Humans Really Live to 150?

A TIME Magazine longevity panel, featuring Harvard’s David Sinclair, explores whether breakthroughs in AI, cellular rejuvenation, and research on sex differences could help today’s children live far longer.

(An image illustrating the possibility of some humans achieving a 150-year lifespan in the future | NAD.com)

David Sinclair and Jennifer Garrison discuss whether AI advancements, cellular rejuvenation techniques, and research on sex differences can make a 150-year lifespan possible.

The Harvard geneticist discussed an early human trial, unpublished mouse results, and an AI-assisted search for chemical rejuvenation therapies on the Joe Rogan Experience. 

Search Result: CAR T Therapy

Why Low Testosterone Isn’t Just About Getting Older: New U.S. Army Findings Point to Belly Fat

NMN Enhances Stem Cell Therapy’s Effects on Immune Aging in Latest Study

David Sinclair’s Experimental Cell-Rejuvenation Therapy Shows Early Vision Signals in First Human Trial

The Future of Longevity: Could Humans Really Live to 150?

“Prophet of Longevity” David Sinclair Reveals New Anti-Aging Data