Final answer:
Three global health challenges that remain to be addressed are aging population, AIDS, and safe atomic energy operation.
Step-by-step explanation:
Global Health Challenges
- Aging: responding to the growth of aging populations (ages 60 and over) worldwide.
- AIDS: continuing to reduce infection and death rates in the global fight against AIDS.
- Atomic energy: promoting the safe, secure, and peaceful operation of more than 440 nuclear reactors generating electricity worldwide.
These three global health challenges remain to be addressed and are interconnected with each other and with long-standing historical inequities. The aging population poses challenges in healthcare, considering their unique healthcare needs and the potential burden on healthcare systems. AIDS continues to be a major health challenge, requiring efforts to reduce new infections and improve access to treatment. The promotion of safe and peaceful use of atomic energy is crucial to avoid the risks associated with nuclear power generation.