Thank you for the link, Aka
It just confirms what a complex, and complicated, picture it is, but I would suggest that changes in diet have not played that great a part, and probably medical practice (prescribing drugs to prevent heart attacks and stroke, and other interventions before they happen) and the fall in prevalence of smoking have had a greater influence.
The main points from the summary are that, as Bags said,
the incidence rates for heart attack have decreased for all age groups
and both sexes since the 1960s.
Also,
- survival rates from heart attack have improved since the 1960s.
– In 2008, around 266 million prescriptions were issued for CVD
in England, nearly five times as many as issued in 1986.
– Over 80,000 percutaneous coronary interventions are conducted
every year in the UK, more than three times as many as a decade ago.
– The prevalence of smoking in Great Britain declined sharply
between 1972 and 1994. Since then, prevalence has continued
to fall, but more slowly.
– The quality of the average UK diet has improved in some aspects
since the 1960s, such as reductions in saturated fat and sugar intake.
– The prevalence of heavy drinking has not substantially increased
in either men or women since the 1970s.
But
– Childhood obesity has been increasing since the mid 1980s in both
boys and girls in the UK.
– Adult overweight and obesity rates are also continuing to increase.
– The number of people who have suffered a heart attack has
increased since 1961, due to increased survival rates and an
aging population.
Who knows what the future holds.