Why Hours of Studying Aren’t Helping You Learn Medicine

Summary

Dr. Philip Tisdall argues that spending many hours studying does not guarantee learning. Passive, comfortable activities—such as highlighting, watching lectures, or recognizing terminology—can feel productive without building understanding. Genuine learning is active and often uncomfortable: students must retrieve, explain, and apply ideas rather than simply encounter them.

His teaching approach begins with clinical problems. Students should connect a patient’s complaint to a differential diagnosis, then use anatomy, physiology, and pathophysiology to explain the symptoms and findings. He says this is harder than memorizing isolated facts, but it produces knowledge that can be used in patient care.

Method: Build and Use a Picture

Using diabetic kidney disease as an example, Tisdall recommends a step-by-step approach:

1. Start with the structure. Draw the kidney and its major regions, then relate the cortex and medulla to a renal lobe and papilla.
2. Add the blood supply. Distinguish the kidney’s macrovascular layout from its microvasculature.
3. Draw the nephron. Divide it into functional segments and identify what each segment does.
4. Connect structure to function. Show how filtration occurs, including the components of the filtration barrier: the endothelium, basement membrane, and podocyte foot-process slit membrane.
5. Tell a physiological story. Explain how the parts work together rather than listing their names or functions separately.
6. Apply the story to disease. Tisdall describes how high blood glucose increases sodium–glucose reabsorption in the nephron. Less sodium reaches the macula densa, prompting a signaling response that contributes to changes in arteriolar tone and increased intraglomerular pressure. The result is hyperfiltration, which he connects to kidney damage.
7. Use the mechanism to understand treatment. He uses this chain of events to explain why sodium–glucose cotransporter inhibitors can be protective in diabetic kidney disease.
8. Practise from memory. When watching a teaching video, keep paper and a pencil handy and draw the pictures yourself. Repeat until you can reproduce them accurately; he notes that this may take many attempts.
9. Get feedback. Compare your drawing and explanation with a tutor, teacher, or expert to catch conceptual errors.
10. Teach someone else. Once you have checked your understanding, explain the picture and mechanism to a friend.

Tisdall describes these drawings as foundational “mental scales” for medicine. Once students can reliably reproduce the relevant structures and explain the physiology, they can use that foundation to reason about pathology, pharmacology, treatment priorities, and patient care. He emphasizes that drawing the pictures is a beginning, not the end, of learning.

Other Points

• Students may pass exams or watch high-quality lectures yet still struggle to explain how the information applies to clinical problems.
• He advocates retaining key diagrams, such as on study cards, for later review instead of repeatedly relearning basic science.
• He describes a learning community where students can post drawings and questions for feedback, and mentions weekly live teaching sessions focused on applying mechanisms to clinical cases.

Speakers and Sources Featured

• Dr. Philip Tisdall — the sole audible speaker and the video’s instructor.
• Medical students — discussed as learners and cited through examples of questions and reactions; no other student is clearly presented as a separate speaker.
• An unnamed physiologist and textbook author — referenced by Tisdall as a source of physiology lectures and a standard medical-school textbook.
• Ali — named as someone who helps monitor the learning community; not presented as a speaker.