Nicotinamide adenine dinucleotide, a coenzyme critical for cellular energy metabolism that declines with age. NAD+ precursors like NMN and NR are studied as longevity interventions.

Mechanistic target of rapamycin, a key nutrient-sensing pathway that regulates cell growth and aging. Inhibiting mTOR (e.g., with rapamycin) has shown lifespan extension in multiple organisms.

A class of drugs that selectively eliminate senescent (aged, dysfunctional) cells to reduce inflammation and improve tissue function.

What is Epigenetic clock?

A biomarker based on DNA methylation patterns that estimates biological age, often more predictive of health outcomes than chronological age.

The period of life spent in good health, free from chronic diseases and disability associated with aging.

An immunosuppressant drug that inhibits the mTOR pathway. Research shows rapamycin may extend lifespan and improve age-related health outcomes in multiple species.

What is Biological age?

A measure of how well or poorly your body is functioning relative to your chronological age, assessed through biomarkers such as DNA methylation, telomere length, and blood panels.

What is Caloric restriction?

A dietary regimen that reduces calorie intake without malnutrition. Caloric restriction is one of the most studied interventions shown to extend lifespan across species.

Protective caps at the ends of chromosomes that shorten with each cell division. Telomere length is associated with aging and age-related diseases.

A state in which cells permanently stop dividing but resist death, accumulating with age and secreting inflammatory factors that damage surrounding tissue.

A second-generation epigenetic clock that predicts time to death and is considered one of the most accurate measures of biological aging.

What is Inflammaging?

Chronic, low-grade inflammation that increases with age and contributes to the development of age-related diseases including cardiovascular disease, diabetes, and neurodegeneration.

The large-scale study of proteins in biological systems. In longevity research, proteomics identifies blood protein signatures that predict biological age and disease risk.

What is Yamanaka factors?

A set of four transcription factors (Oct4, Sox2, Klf4, c-Myc) that can reprogram adult cells to a pluripotent state. Partial reprogramming with Yamanaka factors is being explored to reverse cellular aging.

Nicotinamide mononucleotide, a precursor to NAD+ that is widely studied as a supplement to boost cellular energy and combat age-related decline.

A gene-editing technology that allows precise modifications to DNA. In longevity research, CRISPR is used to study and potentially modify genes associated with aging.

A cellular housekeeping process where cells break down and recycle damaged components. Declines with age and is stimulated by fasting.

What is Intermittent fasting?

An eating pattern that cycles between periods of fasting and eating. Various protocols (16:8, 5:2) are studied for metabolic, cardiovascular, and longevity benefits.

What is Zone 2 cardio?

Low-intensity aerobic exercise performed at roughly 60–70% of maximum heart rate, primarily using the aerobic energy system. Associated with mitochondrial health and longevity.

Geographic regions identified by researchers where people consistently live longer and healthier lives than average, including Sardinia, Okinawa, and Loma Linda.

Can dentures protect your brain as you age?

Researchers found that losing teeth can increase the risk of cognitive decline in older adults, but using dentures may help protect against this decline. A study involving over 2,100 older adults in China revealed two distinct cognitive pathways: one group maintained high cognitive function, while the other experienced a decline. Those with fewer teeth were more likely to fall into the declining category, highlighting the importance of dental health for brain health.

For anyone looking to age well, these findings emphasize the connection between oral health and cognitive function. Specifically, individuals with 21 or more teeth had a significantly lower risk of cognitive decline when using dentures, with a remarkable 73% reduction in risk. This suggests that maintaining dental health, and using dentures when necessary, can play a crucial role in preserving mental faculties as we age.

The study used a robust method called group-based trajectory modeling to analyze cognitive changes over time, providing strong evidence that tooth loss is linked to cognitive decline. However, it’s important to note that while the results are compelling, they are based on observational data, meaning more research is needed to establish a direct cause-and-effect relationship.

To support your cognitive health, consider prioritizing dental care and addressing tooth loss early. If you find yourself losing teeth, consult with a dental professional about the potential benefits of dentures. Taking proactive steps can help you maintain both your smile and your mental sharpness as you age.