A major change has been made to Australia's asthma guidelines, but how long will it take everyone to catch on?

Also, we know daily aspirin for the primary prevention of cardiovascular disease isn't beneficial, but a new study shows there might be risks. 

And should the one-time blood test for lipoprotein(a) be free for everyone?

References:

• National Climate Risk Assessment | Australian Climate Service
• Underestimating heat-related mortality—a comparison of excess mortality and death record studies for Australia - The Lancet Regional Health – Western Pacific
• More evidence climate change is bad for our hearts - ABC listen 
• Medical Imaging and Pediatric and Adolescent Hematologic Cancer Risk | New England Journal of Medicine
• Ig Nobel Prizes celebrate pizza-eating lizards, drunk bats and garlic-flavoured breast milk - ABC News
• Aspirin, cardiovascular events, and major bleeding in older adults: extended follow-up of the ASPREE trial
• Lp(a) testing for the primary prevention of cardiovascular disease in high-income countries: a cost-effectiveness analysis
• Australian Asthma Handbook