Medicine Through TimeTopic Summary
Topic Summary: Modern Medicine — 20th and 21st Centuries
Part of Modern Medicine — GCSE History
This topic summary covers Topic Summary: Modern Medicine — 20th and 21st Centuries within Modern Medicine for GCSE History. Revise Modern Medicine in Medicine Through Time for GCSE History with 8 exam-style questions and 4 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 17 of 17 in this topic. Use this topic summary to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 17 of 17
Practice
8 questions
Recall
4 flashcards
Topic Summary: Modern Medicine — 20th and 21st Centuries
Key Terms
- DNA (double helix): Structure discovered by Watson and Crick (1953) — foundation of genetic medicine
- Antibiotic resistance: Bacteria evolving to survive antibiotics — MRSA, C. diff; WHO predicts 10 million deaths/year by 2050
- Human Genome Project: International project (2003) mapping all 20,000+ human genes — foundation for personalised medicine
- Lifestyle diseases: Obesity, diabetes, heart disease — caused by diet/inactivity; require behaviour change, not just medicine
- Gene therapy: Treating disease by correcting faulty genes — based on DNA structure and genome mapping
- Transplant surgery: Replacing failed organs — first kidney (1954), first heart (1967, Barnard)
Key Dates
- 1948: NHS launched — free healthcare for all (5 July)
- 1953: Watson and Crick — DNA double helix structure
- 1954: First kidney transplant — Joseph Murray (USA)
- 1967: First heart transplant — Christiaan Barnard (South Africa)
- 1978: First IVF baby — Louise Brown
- 2003: Human Genome Project completed — 20,000+ genes mapped
- 2020–21: COVID-19 mRNA vaccines — record-speed development
Key People
- James Watson and Francis Crick: DNA double helix structure (1953) — built on Rosalind Franklin's X-ray crystallography
- Rosalind Franklin: X-ray crystallography of DNA — "Photo 51" essential to Watson and Crick; not credited in her lifetime
- Christiaan Barnard: First heart transplant (1967, South Africa)
- Aneurin Bevan: Labour Health Minister who launched the NHS on 5 July 1948
Must-Know Facts
- Watson and Crick discovered DNA STRUCTURE (double helix) in 1953 — not DNA itself
- Rosalind Franklin's X-ray work was central to the discovery — she was not credited
- Human Genome Project (2003): 13 years, 6 countries, ~$3 billion, 20,000+ genes mapped
- First heart transplant (Barnard, 1967): patient lived 18 days
- Antibiotic resistance: WHO predicts 10 million deaths/year by 2050
- TGIN factors: Technology, Government (NHS), Individuals, New challenges
- Three turning points: Germ theory (1861), Penicillin (1944), DNA (1953)
- Continuity: individuals, technology, government have driven progress across all periods
Cross-Topic Links
- → Topic 46 (NHS): The NHS (1948) is the structural framework within which all modern medicine operates — DNA research, transplant surgery, and vaccines are all delivered through the system Bevan created.
- → Topic 45 (Penicillin): Penicillin opened the antibiotic era — modern medicine now faces antibiotic resistance (MRSA, C. diff) as a consequence, showing how each medical breakthrough can create new challenges.
- → Topic 40 (Germ Theory): Germ theory (1861), the Human Genome Project (2003), and DNA structure (1953) are three turning points showing how scientific understanding drives medical change — continuity in the role of science across 150 years.
- → Topic 39 (Jenner): The COVID-19 mRNA vaccines (2020–21) are the direct descendants of Jenner's 1796 vaccination — the same principle of training the immune system, refined over 225 years of scientific development.
- → Topic 33 (Medieval Ideas): Comparing modern medicine with medieval ideas across the full 800 years shows the dramatic scale of change — from humours and prayer to gene therapy and transplant surgery — while continuity in factors (individuals, technology, government) persists.