Health
The Biohackers Case for Donating Blood
Jan 1, 2025

The Biohacker's Ultimate Hack: Why Donating Blood Could Be Your Most Powerful Health Intervention
Blood donation isn't just altruistic—it might be the most overlooked biohack available. In just one hour, you can simultaneously reduce your PFAS "forever chemical" burden, decrease cardiovascular disease risk, and potentially extend your healthspan—all while saving up to three lives. While most biohackers focus on expensive supplements and cutting-edge devices, this ancient practice offers evidence-backed health benefits that rival many modern interventions. And unlike most biohacks, your donation contributes to life-saving medical products that expand not just your healthspan, but society's collective health.
The Science Behind Blood Donation as a Biohack
As biohackers, we're constantly searching for interventions that optimize our biology—ideally ones that are backed by research, cost-effective, and sustainable. Blood donation sits at this perfect intersection, offering compelling benefits across multiple health domains.
Blood Donation: The Ultimate PFAS Detox
Per- and polyfluoroalkyl substances (PFAS) have earned their nickname as "forever chemicals" for their persistence in both the environment and human bodies. These synthetic compounds are found in everything from non-stick cookware to waterproof clothing, and studies show they're present in the bloodstream of 97% of Americans.
Research published in JAMA Network Open demonstrated that regular blood donation is one of the few proven methods to actually reduce PFAS levels in the body. The study found that firefighters who donated blood showed a significant decrease in serum PFAS concentrations compared to non-donors over the same period.
Why does this matter? PFAS exposure has been linked to:
Increased cholesterol levels
Decreased vaccine response
Liver damage
Increased risk of certain cancers
Thyroid disease
Decreased fertility
While many detox protocols make bold claims with little evidence, blood donation offers a scientifically verified method to reduce these harmful compounds circulating in your system.
Cardiovascular Benefits: Optimizing Your Blood Quality
One of the most well-documented benefits of blood donation is its positive impact on cardiovascular health. A study in the American Journal of Epidemiology found that regular blood donors had an 88% reduced risk of acute myocardial infarction compared to non-donors.
The mechanisms behind this benefit include:
Reduced blood viscosity: Thinner blood means less strain on your cardiovascular system and better oxygen delivery to tissues.
Iron balance optimization: While iron is essential, excess iron can act as a pro-oxidant, potentially damaging blood vessels. Regular donation helps maintain optimal iron levels.
Hemoglobin renewal: Donation triggers your body to produce fresh red blood cells, potentially improving oxygen-carrying capacity over time.
For biohackers focused on cardiovascular optimization, these benefits rival many expensive supplements and interventions.
Metabolic Enhancement
Research published in the Journal of the American Medical Association found that regular blood donors showed improved insulin sensitivity and glucose metabolism compared to non-donors. This could be partially explained by the reduction in iron stores, as excess iron has been linked to insulin resistance.
For those biohackers tracking their continuous glucose monitors and optimizing metabolic health, blood donation could be an effective additional intervention.
Beyond Individual Benefits: Blood Products and Cutting-Edge Research
What makes blood donation particularly unique in the biohacking space is its dual function: it optimizes your own biology while contributing to products and research that may extend healthspan for everyone.
Plasma Exchange Therapy and Aging Research
Even prominent biohackers like Bryan Johnson have explored plasma-based therapies in their longevity protocols. Johnson has discussed using Plasma Exchange Therapy, which involves removing plasma and replacing it with albumin, a product derived from donated human plasma.
While plasma exchange as an anti-aging intervention remains experimental, the research in this space is active and promising. Studies in mice have shown that replacing old plasma with albumin solution can reverse certain age-related cognitive impairments.
It's important to note that these therapies require donated blood products to function. The albumin used in these treatments comes from plasma fractionators like Grifols and CSL, which process donated plasma into various medical products.
Life-Saving Applications of Donated Blood
While the personal health benefits of donation are compelling, the impact on others cannot be overstated:
Trauma care: Hemorrhage from traumatic injury remains one of the leading causes of preventable death worldwide. Your donation directly addresses this risk for others.
Surgical procedures: Complex surgeries often require multiple units of blood products.
Cancer treatments: Many chemotherapy regimens suppress bone marrow function, requiring blood product support.
Chronic diseases: Conditions like sickle cell anemia require regular transfusions.
Research and development: Blood products are essential for developing new treatments and diagnostic tests.
The Biohacker's Guide to Blood Donation
For those ready to incorporate this evidence-based biohack into their regimen:
Optimizing Your Donation Experience
Hydrate well: Drink 16oz of water before donating to improve vein access and prevent post-donation dizziness.
Time it right: Consider donating during your peak energy hours.
Track your metrics: Monitor your blood biomarkers before and after donation to observe changes.
Frequency optimization: Males can typically donate whole blood every 56 days, females every 84 days (due to menstruation-related iron loss).
Consider specialized donations: Platelet and plasma donations allow for more frequent contributions and target specific medical needs.
Where to Donate
You have several options, each with different benefits:
Non-profit blood centers: Organizations like Vitalant, New York Blood Center, and Red Cross focus purely on the medical applications of donations.
Paid donation centers: Companies like Grifols and CSL offer compensation for plasma donations, which they process into specialized medical products.
GoodLabs: I'm building GoodLabs to offer free health and wellness blood tests with your donation. Remove PFAS + get free blood tests + save lives. Sign up for our waitlist here: hellogoodlabs.com
Conclusion: The Ultimate Win-Win-Win Biohack
Most biohacks require significant investment for uncertain returns and benefit only the individual. Blood donation stands apart as perhaps the only biohack that simultaneously optimizes your personal biology, contributes to life-saving medical products, and directly saves lives.
As biohackers seeking to live longer, be our best selves, and lift up those around us, blood donation aligns perfectly with these goals. It's time we recognize this ancient practice as not just an act of altruism, but perhaps the most powerful, evidence-based intervention in the biohacker toolkit.
Whether you're motivated by reducing your PFAS burden, optimizing cardiovascular health, or contributing to cutting-edge longevity research, your next blood donation might be the most impactful health intervention you make this year.
Sources:
https://www.blood.co.uk/the-donation-process/after-your-donation/how-your-body-replaces-blood/
https://webpath.med.utah.edu/TUTORIAL/BLDBANK/BBAPHER.html#:~:text=Plasmapheresis
https://healthmatters.nyp.org/the-surprising-benefits-of-donating-blood/
https://pmc.ncbi.nlm.nih.gov/articles/PMC10694464https://interactives.dallasnews.com/2023/bleeding-out/bleeding-to-death-traumatic-injury-preventable/