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.

The Common Cold: A Genetic Perspective

The study of genetic traits and their effects on health reveals an unexpectedly critical condition which is frequently overlooked: the common cold. Despite appearing mild at first glance this viral infection can interrupt our routine by causing nasal congestion along with sore throat and coughing symptoms. Your genetic composition might play a role in how likely you are to contract a cold.

Genetic Trait:

The common cold results from multiple viruses with rhinoviruses being the main culprits and leads to upper respiratory tract symptoms including nasal discharge or blockage, sneezing fits, tiredness and coughing. The majority of cold cases resolve in about a week but individual genetic predispositions determine both the likelihood of getting a cold and how severe the symptoms become. Studies show that a person's age together with their immune system strength and environmental exposures such as smoking or proximity to sick people along with genetic factors determine their risk of catching a cold. Those with weakened immune systems along with children under six and individuals exposed to smoke face increased risk levels. Genetic differences can determine our immune system's response to viral infections which may alter the frequency and severity of cold episodes.

Actionable Tips:

  1. Maintain immune health by consuming a nutrient-dense diet that includes essential vitamins and minerals.
  2. Maintain proper sanitation practices year-round and be especially vigilant about hygiene during cold seasons to minimize viral contact.
  3. Support your immune system by ensuring adequate sleep and controlling stress levels.
  4. Understand your genetic risk for infections such as the common cold through genetic testing.

By understanding genetic factors that influence the common cold people can take effective preventative health measures. The Precision Health & Wellness tests available from PlexusDx and sold on PlexusDx.com as well as Amazon and Walmart provide valuable insights about your genetic predispositions which enable you to make informed decisions to enhance your well-being. Your health benefits from the power of knowledge. Knowledge keeps you informed and proactive while you embrace your path to become healthier and stronger.

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.