HSA | FSA CARDS ARE NOW ACCEPTED

Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

PlexusDx delivers personalized health reports

that provide significant information about genetic traits which influence different elements of health and wellness. ADA represents a genetic characteristic categorized under Mental & Cognitive Health because it produces an enzyme that degrades adenosine. Analyzing genetic changes in ADA gives people key insights regarding their attention span and life expectancy alongside their general health condition. The ADA gene functions as a key regulator for controlling the levels of adenosine throughout the body. The endogenous nucleoside adenosine regulates several physiological processes including the sleep-wake cycle and immune function while also enhancing blood circulation. The ADA enzyme activates to transform excess adenosine into inosine and signals the body to stop adenosine production. The body needs this process to keep adenosine levels at the precise balance required for optimal physiological function. ADA exists in two forms known as ADA1 and ADA2 where ADA2 represents the main form present in blood. The 'T' allele of rs73598374 in ADA causes reduced enzyme activity which leads to elevated adenosine levels and decreased inosine production. Individuals with this genetic variant face attention difficulties because they accumulate adenosine which leads to fatigue and tiredness. The genetic variant leads to different longevity outcomes by decreasing the likelihood of living beyond 88 years while increasing the chances of surviving between 68 and 88 years in men. Several factors together explain why this ADA variant produces dual effects on human lifespan. This genetic variant correlates with shorter telomeres which could affect longevity potential. This genetic variant produces higher adenosine levels which may lower coronary artery disease and ischemic attack mortality risks thereby reducing premature death risk. People who want to improve their mental and brain health through genetic understanding must grasp the consequences of the ADA gene variant. Through PlexusDx's Precision Health & Wellness tests individuals can acquire valuable knowledge about their genetic influences on attention span and cognitive ability as well as their prospects for extended life. Understanding genetic insights enables people to make knowledgeable health decisions that create personalized approaches for cognitive enhancement and longevity improvement. The ADA gene variant serves as a remarkable point where genetics meets mental health outcomes and lifespan extension. The exploration of genetic traits such as ADA enables people to discover critical information that leads to personalized approaches for improving health outcomes. Explore your genetic predispositions through the Precision Health & Wellness tests available from PlexusDx at PlexusDx.com, Amazon, and Walmart. Leverage genetic insights as you begin your journey towards better mental and cognitive health.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.