<p>Model: 8-month-old female Swiss mice</p>
<p>Dosage: 200 µL of aged-derived fecal suspension administered orally three days per week for two weeks</p>


New Study: Transferring Gut Microbes from Old to Adult Mice Shortens Lifespan

Spanish scientists unveil data showing that transferring fecal microbes from old to adult mice increases biological age and shortens lifespan.

(A depiction of the intestines filled with gut microbes | Northwestern Medicine)

Spanish scientists show that transferring fecal microbes from old to adult mice increases biological age and shortens lifespan.

Aging &amp; Longevity

Joe Rogan’s Top Supplements for 2026

Joe Rogan’s latest supplement stack includes compounds targeting longevity, cognition, immunity, fitness, and optimal hormone levels.

(Joe Rogan on set for his podcast | Spotify Newsroom)

Joe Rogan’s updated supplement stack for 2026 includes compounds targeting longevity, cognition, immunity, fitness, and optimal hormone levels.

Aging Guru Bryan Johnson’s Supplement List for 2026

Changes to Bryan Johnson’s latest supplement stack include taking NMN or NR six days a week, rather than seven, and eliminating the use of rapamycin.

(Bryan Johnson, who utilizes a continuously updated protocol to slow aging and optimize his body | Netflix)

Changes to Bryan Johnson’s updated 2026 supplement stack include taking NMN or NR six days a week instead of seven and removing rapamycin.

How American Country Music Icon Willie Nelson Has Defied Age Limitations into His 90s

Country music legend Willie Nelson practices martial arts to maintain physical function, keeps a positive outlook, and eats low amounts of food for astounding longevity.

(Willie Nelson [with American flag bandana] plays alongside Walon Jennings [left] and Johnny Cash [right] | YouTube)

Country music icon Willie Nelson does martial arts, stays positive, and keeps his calorie intake low for optimal aging into his 90s.

Latest Human Trial from the Buck Institute Shows Plasma Exchange Lowers Biological Age

A new human study shows that a procedure involving the replacement of blood plasma with a fresh solution (therapeutic plasma exchange) lowers a measure of how quickly the body is aging (biological age).

(The Buck Institute for Research on Aging | Facebook)

In a first-of-its-kind human trial, participants who underwent therapeutic plasma exchange exhibited significantly lowered biological age.

Search Result: Immunity

New Study: Transferring Gut Microbes from Old to Adult Mice Shortens Lifespan

Joe Rogan’s Top Supplements for 2026

Aging Guru Bryan Johnson’s Supplement List for 2026

How American Country Music Icon Willie Nelson Has Defied Age Limitations into His 90s

Latest Human Trial from the Buck Institute Shows Plasma Exchange Lowers Biological Age