The GAD1 gene builds GABA, the brain's main calming neurotransmitter, and its variant rs3749034 has been studied in bipolar disorder, depression, and anxiety. Learn what this SNP does, why one variant never tells the whole story, and how pathway-level genetic insight supports professional care.

The APOC3 gene controls how fast your body clears triglycerides. Loss-of-function variants are linked to roughly 40% lower triglycerides, reduced heart-disease risk, and longevity in long-lived families. Learn how APOC3 works and what the Precision Peptide Genetic Test reveals about your pathways.

Aluminum is everywhere — in cookware, food additives, antacids, and water — but the body absorbs very little and healthy kidneys clear the rest. Genes such as TF and SOD2 shape how you transport metals and manage oxidative stress. Learn the real risks, the Alzheimer's question, and simple ways to reduce exposure.

The PPARD gene governs fat burning and mitochondrial energy use, processes central to aging. Regulatory variants like rs2016520 (+294T>C) appear in longevity and metabolic research alongside FOXO3 and PPARGC1A. Learn what the science shows and how the Precision Peptide Genetic Test maps energy-metabolism pathways.

Parathyroid hormone controls blood calcium, and low PTH (hypoparathyroidism) can cause tingling, cramps, and fatigue. This article explains the symptoms, the genes involved — including CASR, GNA11, and GCM2 — and why evaluation and any treatment belong with a qualified provider.

Shoulder impingement risk is influenced by connective-tissue genes including COL5A1 (rs12722), MMP3, and TNC, which shape tendon quality and repair. Learn how these variants interact with load and posture, why genetics is context not diagnosis, and how the Precision Peptide Genetic Test frames your recovery pathways.

The BHMT gene helps recycle homocysteine into methionine using betaine, and the common variant rs3733890 (R239Q) can subtly shape that pathway. Learn what BHMT does, what rs3733890 represents, how it connects to MTHFR and methylation, and how pathway-level genetic reports add context.

Dandruff comes from Malassezia yeast, scalp oil, and individual sensitivity shaped by genetics. Skin barrier variants in the FLG gene and inherited immune tone influence who flakes. Learn the genetic factors and evidence-based management, plus how pathway-level insight adds context.

Air pollution sensitivity is partly genetic: detox genes like GSTM1 and GSTP1 (Ile105Val) and antioxidant genes such as NQO1 shape how your body clears airborne toxins. This article explains the biology, the GSTM1-null genotype, and how pathway-level genetic insight adds context to your exposure risk.

Deep vein thrombosis risk is shaped by inherited clotting differences. Factor V Leiden in the F5 gene is the most common, followed by prothrombin G20210A in F2 and rarer deficiencies in antithrombin, protein C, and protein S. This article explains these thrombophilia variants and how they combine with triggers like surgery and immobility.

Alkaline phosphatase (ALP) is a routine blood marker that reflects liver, bone, and genetic factors. Learn what high and low ALP can indicate, how the ALPL gene and hypophosphatasia set enzyme levels, and how common variants near ABO and GPLD1 — plus your blood type — shape your baseline reading.

Roughly half of people with diabetes develop neuropathy, but not everyone with similar blood sugar does. This article explains how genetic variants in AKR1B1, GPX1, ACE, and MTHFR shape nerve-damage susceptibility, why blood-sugar control still comes first, and what pathway-level genetic insight adds to a provider-led plan.

Recurrent bronchitis is rarely random. Variants in genes such as SERPINA1 (alpha-1 antitrypsin) and GSTM1 shape lung protection and antioxidant defense, while smoking and pollution multiply the risk. Learn how genetic pathway insight fits alongside a provider conversation.

Genetic factors in dry eye involve tear-film genes like AQP5 and MUC5AC, autoimmune-linked HLA class II genes, and inflammatory pathways such as TNF and IL6. This article reviews what the research shows about the genetics of dry eye and how a pathway-level genetic test fits alongside professional eye care.

Contrast-induced nephropathy (CIN) is a temporary drop in kidney function after iodinated contrast dye, driven by oxidative stress in tissue with little oxygen to spare. Learn the real risk factors, why symptoms are often silent, how clinicians prevent it, and where variants like NOS3 and SOD2 add pathway-level context.

Keratoconus thins and bulges the cornea into a cone, distorting vision, and genes like ZNF469 and VSX1 shape corneal structure. This article covers what happens to the cornea, the genetic and environmental causes, detection, evidence-based care, and where genetic insight fits.

Genetic factors help explain why facial wrinkles appear earlier for some people than others. Genes for collagen (COL1A1), collagen breakdown (MMP1), oxidative defense (SOD2), and sun sensitivity (MC1R) all shape skin aging. Learn what the research shows and how pathway-level genetic insight can inform a provider-guided prevention plan.

Eyelid inflammation, or blepharitis, is shaped by skin-barrier and immune genetics. Named variants in filaggrin (FLG) and near the HLA region influence eczema and rosacea, two common drivers. Learn the biology, what research shows, and how pathway-level genetic insight adds useful context.

Nail biting (onychophagia) is a body-focused repetitive behavior with a partial genetic basis shown by twin studies. Candidate genes from grooming research — SAPAP3 (DLGAP3), SLITRK1, HOXB8 — plus COMT and serotonin variants shape the impulse and anxiety circuits involved. This article explains the biology and why behavior still matters most.

Some people develop blood clots far more often than others, and inherited variants in the F5 (Factor V Leiden), F2 (prothrombin), and MTHFR genes help explain why. Learn how coagulation genetics create a baseline risk, what triggers stack on top, and how pathway-level insight informs your provider conversation.

COPD risk is shaped by genes as well as smoking. SERPINA1, which encodes alpha-1 antitrypsin, is the clearest inherited driver and can cause emphysema even in nonsmokers, while HHIP, CHRNA3/5, and GSTM1 add smaller effects. This article explains the genetics and the proven steps that protect lung health.

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.