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A report exclusively shared with Newsnight has exposed the widening regional health inequalities across Merseyside and Cheshire, saying it has areas of "substantial wealth and substantial deprivation".

While disparities have always existed and successive governments have tried to address them, the report says they have increased following a decade of austerity policies, the Covid pandemic and now the current cost of living crisis.

Research shows that growing up in poverty means your home, the food you eat and even the air you breathe are more likely to cause you harm, and may even shorten your life

Anna Collinson reports and Kirsty Wark is joined by Sir Michael Marmot, lead author of the All Together Fairer review.