Arun V J: Why Does Only 3% Donate Blood Even Though 95% Believe Donating Is Essential?
Arun V J, Consultant in the Department of Transfusion Medicine at Malabar Medical College, shared on LinkedIn:
”Why Does Only 3% Donate Blood Even Though 95% Believe Donating Is Essential? It’s not Laziness. It is “Intention-Behavior Gap.”
That is a massive gap.
As a doctor, I believed problem was logistics—people didn’t have time. But as a student of human behavior, I realized the problem is actually psychology.
You aren’t lazy. You aren’t uncaring. You are just running outdated software.
Your brain has three evolutionary “bugs” that talk you out of saving a life:
1. The Bystander Effect (Diffusion of Responsibility) You see a viral post about blood shortages with 10,000 likes. Your brain whispers: “With that much attention, surely thousands of people are donating. My pint won’t matter.” The Glitch: Everyone is waiting for everyone else. We assume the “System” will handle it. The Truth: The system is empty. You are the system.
2. The Ostrich Effect (Information Avoidance) Ever walk past a blood donation camp and purposely look at your phone? That is the Ostrich Effect. We instinctively ignore information that makes us feel uncomfortable or reminds us of hospitals. You aren’t “too busy.” You are psychologically shielding yourself from reality to protect your mood.
3. Temporal Discounting (Present Bias) Your primal brain prioritizes NOW over LATER.
The Cost: A needle prick (Immediate and Certain).
The Reward: Saving a life (Abstract and Distant).
Your brain does the math: “Avoid the immediate pain.” It discounts the massive future reward because it can’t feel it yet.
How to Hack the Glitch:
Stop trying to be a selfless saint. Behavioral science suggests we should embrace “Impure Altruism.”
It is okay to donate for the “Warm Glow.”
It is okay to donate for the ego boost.
It is okay to donate just to feel like a hero for the rest of the day.
The patient receiving the blood doesn’t care about your motives. They only care about your red blood cells.
The Fix: Don’t rely on willpower (“I might go”). Rely on identity (“I am a donor”).
Book the appointment. override the bugs. Be the glitch in the system.”
Read the full article here.

Stay updated with Hemostasis Today.
-
Jan 28, 2026, 13:55Ney Carter Borges on Colchicine As 2ry Prevention in Atherosclerotic CVD
-
Jan 28, 2026, 13:35Louise St Germain Bannon Invites You to Submit Your Work to JTH and RPTH
-
Jan 28, 2026, 13:26Livia Stanger and Colleagues Link CS014 to in Vivo Thrombosis
-
Jan 28, 2026, 13:14Robert Campbell Congratulates Izabella Andrianova for Her Recent Publication in JTH
-
Jan 28, 2026, 12:59Pall Onundarson: Diluted Fiix Test Can Be Used to Measure DOACs
-
Jan 28, 2026, 12:06Gevorg Tamamyan On Transparency as the Foundation of Trust
-
Jan 28, 2026, 11:54Abdulrahman Katib on STORM-PE Results In Favour of Thrombectomy in PE
-
Jan 28, 2026, 11:45Eslam Elkhadrawy on Heparin-Induced Thrombocytopenia
-
Jan 28, 2026, 08:59Chris Jones: Quality Over Quantity is Definitely The Priority
