Participants: Healthy adults 
Dosage: An escalating dose of niacin (250-1000 mg/day) for 16 weeks

Finnish scientists used a new measurement system to detect low NAD+ levels in blood samples from people with a range of age-related conditions, but not in healthy older individuals.


Principal Investigator of the study, Dr. Anu Suomalainen (image: helenski.fi).

Model: Female ICR (Institute of Cancer Research) mice
Dosage: ~240 mg/day of pterostilbene within food

Pterostilbene Promotes Fertility in Aged Females

The plant-based antioxidant, pterostilbene, improves egg quality in aged mice, as measured by an increase in live offspring. 

Blueberries are among the richest natural sources of pterostilbene. 

Aging &amp; Longevity

Andrew Huberman’s Updated Supplement Stack for 2026

Stanford neuroscientist Andrew Huberman’s updated supplement list includes the NAD+ precursor NMN, along with other compounds for sleep and cognitive performance.

Dr. Andrew Huberman’s new supplement stack for 2026 includes NMN, along with supplements supporting sleep, testosterone synthesis, and cognitive function.

Model: Young (2- to 4-month-old) and aged (9- to 10-month-old) C57Bl/6JR mice, APP/PS1 mice, and 5xFAD mice 
Dosage: 0.2 mg/mL of doxycycline in drinking water starting at least 7 days before surgery and ceased 2 days before the partial cellular reprogramming window for engram tagging, after which it was immediately reintroduced

Gene Therapy Restores Cognitive Function in Aging and Alzheimer’s Disease

Delivering a gene therapy targeting ensembles of neurons that store memories restores learning and memory capabilities in mouse models of aging and Alzheimer’s disease.

(The study’s principal investigator, Professor Johannes Gräff | 24 Heures)

A partial cellular reprogramming gene therapy targeting memory trace cells restores facets of learning and memory in aged mice and those modeling Alzheimer’s disease.

Brain &amp; Neurons

The Anti-Aging Debate Everyone’s Talking About: Inside Bryan Johnson’s Jubilee Showdown

Bryan Johnson debates 20 skeptics on anti-aging in Jubilee’s viral episode and challenges assumptions about lifespan, science, and the future of human health.


Search Result: Aging Population

NAD+ Levels Stay Stable in Healthy People but Drop in Disease, New Study Shows

Pterostilbene and Fertility: New Study on Restoring Reproductive Aging

Andrew Huberman’s Updated Supplement Stack for 2026

Gene Therapy Targeting Memory-Encoding Neurons Restores Cognitive Function in Aging and Alzheimer’s Disease

The Anti-Aging Debate Everyone’s Talking About: Inside Bryan Johnson’s Jubilee Showdown