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Jim Penman. A man wearing a white 'Jim's Group' branded shirt speaks into a handheld microphone at what appears to be a public event.
✓ 7NEWSCulture & Curiosity

Dopamine overload behind Australia's birth crisis, Jim Penman claims

Jim Penman claims too much dopamine explains falling births. Experts blame housing costs, inequality, and economic insecurity.

Jim Penman built a lawn mowing empire. He is running for Victorian parliament.

He claims modern life overloads our brains. Social media, junk food, alcohol, pornography and sex flood our systems with dopamine, he argues in his new book.

Repeated dopamine surges make the brain less sensitive. Then ordinary things like family and children become less appealing.

Australia's fertility rate has fallen to 1.5 children per woman. This is well below the 2.1 needed to replace the population.

But demographers say the real drivers are more complex: housing affordability, economic insecurity, gender inequality, and uncertainty about the future. Dr Liz Allen from the Australian National University said Australians are not avoiding children because they are selfish.

They avoid children because of these genuine barriers.

1.5 children per woman
Australia's fertility rate
2.1
Replacement rate needed
10
Jim Penman's children

Why it mattersAustralia's population is shrinking. This affects the workforce, the economy, and the tax base. The real causes matter for policy. Dopamine theories suggest people need more discipline. But experts say governments must act on housing and jobs.

AustraliaAustralia's birth rate crisis directly affects workforce growth, aged care demand, and the sustainability of services. Understanding the real causes will shape whether Australia tackles housing costs or just tells people to use their phones less.

✓ Claims checked against the source. checked 1 h ago

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