Model: Male Wistar rats (4-month-old young rats and 24-month-old old rats)
Dosage: Oral administration of the trypsin inhibitor tranexamic acid in drinking water for 14 days at a minimum dose of 0.39 g/kg/day after consuming about 40 mL/day of water

Newly Proposed Aging Mechanism: Digestive Enzymes May Be Eating Us from Within

University of California, San Diego researchers show digestive enzyme leakage from the intestines contributes to organ damage in old rats, offering what may be a new way to explain aging.

(Principal investigator, Geert Schmid-Schönbein | voiceofsandiego.org)

Aging &amp; Longevity

Model: 40 aged patients with COPD with an average age of 71.9 
Dosage: One gram of NR taken twice daily for a total of two grams per day for six weeks

Fresh Insights: NR’s Effects on Inflammation in Age-Related Lung Disease

Taking nicotinamide riboside (NR) is tied to a 52.6% reduction of an inflammatory protein in the sputum—mucus coughed up from the respiratory tract—of patients with chronic obstructive pulmonary disease (COPD).

(Principal investigator Dr. Morten Scheibye-Knudsen, Associate Professor from the University of Copenhagen | Videnskab DK)

How 84-Year-Old Acting Legend Chuck Norris Defies Aging

Chuck Norris eats whole, nutrient-dense foods, maintains a rigorous workout routine that includes martial arts training, and practices meditation to stay young.

(Chuck Norris seemingly defies the ravages of aging | The Alabama Baptist)

Harvard anti-aging expert Dr. David Sinclair says that low-dose Viagra has become popular, but why?


Some studies suggest that Viagra may treat Alzheimer's disease. 

Brain &amp; Neurons

Longevity expert Peter Attia, M.D., prescribes the 4x4 protocol to his patients to improve long-term heart health. 

Peter Attia (Image: Dia Dipasupil/Getty Images)

Peter Attia recommends the 4x4 protocol to train VO2 max, a measure that strongly predicts lifespan. 

Search Result: Lungs

Newly Proposed Aging Mechanism: Digestive Enzymes May Be Eating Us from Within

Fresh Insights: NR’s Effects on Inflammation in Age-Related Lung Disease

How 84-Year-Old Acting Legend Chuck Norris Defies Aging

Taking Viagra to Improve Memory and Prevent Dementia

Dr. Peter Attia’s VO2 Max Protocol and Heart Health Supplements for Longevity