Recurrent strep infections are shaped by immune genetics, including HLA-DQB1 and HLA-DRB1 variants that affect antibody recognition and MBL2 variants that lower innate bacterial clearance. This article explains why some people catch strep repeatedly and how genetic insight adds context for a provider conversation.

The SOD2 variant rs4880 (Ala16Val) alters how the MnSOD antioxidant enzyme reaches the mitochondria, and it has been studied for associations with cardiovascular disease, cancer, diabetic complications, and neurodegeneration. This article explains the biology, the limits of association research, and what pathway-level genetic context can add.

Frailty reflects reduced physiological reserve, and genetics helps set the baseline. Muscle gene ACTN3, longevity gene FOXO3, and metabolic gene FTO shape strength, resilience, and body composition as we age. Learn what the research shows and how pathway-level genetic insight can inform a provider-guided healthy-aging plan.

OBFC1 (STN1) encodes part of the CST complex that maintains telomeres, the protective caps on your chromosomes. Genome-wide studies link OBFC1 variants to telomere length, a marker tied to biological aging. Learn how this longevity gene works and what pathway-level genetics can reveal.

C. difficile infection develops when antibiotics disrupt the protective gut microbiome. Learn how host genes like IL8 (CXCL8) and TLR4 may influence infection severity and recurrence, why antibiotic stewardship drives prevention, and how pathway-level genetic insight adds educational context for conversations with your provider.

Chronic inflammation is shaped partly by your genes. Learn how variants in TNF, IL6, NFKB1, and the CRP biomarker influence your inflammatory baseline, which lifestyle levers matter, and how PlexusDx testing provides pathway-level genetic insight — for education, not diagnosis or treatment.

GPX1 (glutathione peroxidase 1) is a frontline, selenium-dependent antioxidant enzyme, and its rs1050450 (Pro198Leu) variant is linked to differences in oxidative-stress defense and healthy aging. This article explains what GPX1 does, what the research shows, and how pathway-level genetic insight fits into your wellness picture.

TAS2R38 is the primary gene behind bitter-taste perception, and its variants (rs713598, rs1726866, rs10246939) sort people into tasters, non-tasters, and supertasters. This article explains why the same broccoli tastes mild to one person and harsh to another, and how taste genetics shapes diet and food choices.

Genital herpes susceptibility is shaped partly by immune genes — including HLA-B, TLR3, and IFNL3 variants that govern how the body detects and controls HSV. This article explains the antiviral pathways involved, why exposure affects people differently, and how pathway-level genetic context supports informed provider conversations.

The HNMT gene controls how fast the brain clears histamine, a neurotransmitter tied to attention and arousal. The Thr105Ile (rs11558538) variant lowers enzyme activity and has been studied in ADHD, migraine, and schizophrenia. See how pathway-level genetic insight adds context.

Genetic factors in headaches range from MTHFR C677T and its link to migraine with aura to ion-channel genes like CACNA1A behind familial migraine. This article explains the most relevant named genes, what genome-wide studies reveal, and the real role and limits of genetic testing in headache management.

Ginseng response varies because gut microbes and liver enzymes like CYP3A4 and CYP3A5 process ginsenosides differently, while COMT shapes how you perceive the effect. This article explains the metabolism pathways behind individual ginseng response and how pathway-level genetic insight adds context.

Genetics explain roughly 50–60% of reaction-time differences, driven by genes such as COMT and BDNF that tune dopamine clearance and neuroplasticity. This guide explains how reaction time works, what your DNA contributes, and evidence-based habits — sleep, exercise, and practice — that sharpen cognitive speed.

Heart failure risk has a real genetic component: variants in TTN, LMNA, MYH7, and MYBPC3 drive inherited cardiomyopathy, while many common variants shape blood pressure and cholesterol. This article explains those genes, the natriuretic peptide pathway, and the evidence-based habits that lower cardiovascular risk.