News on long COVID and indoor air quality | Visualising plaque in your arteries | An under-tested blood fat | Kids' risk of poor health in the youth justice system

News this week is The Government response to the long COVID inquiry, which looked into how many Australians are living with long COVID and what could be done to support them.And, a report on fine particulates in the air, and their relationship with coronary heart disease.A study has tested whether showing people actual pictures of the plaque inside their arteries is more persuasive than a simple risk score in promoting healthy changes. Turns out, it is.A senior cardiologist calls it The Hidden Killer, and it may contribute to about 50% of heart attacks, especially people who may be younger and with relatively normal cholesterol levels. It’s called Lipoprotein(a) or Lp(a).New data is showing that, for children, any contact with the criminal justice system means they’re more likely to die earlier, and have health problems of every kind. Are kids already at risk more likely to be targeted by the system—what would change this trend?