What are some of the most critical health concerns we face in the 21st century and why?

21st century healthcare challenges: medical trends.

Healthcare for an aging population.

Healthcare in the age of climate change.

Healthcare and multimorbidity.

Healthcare for those suffering from mental illness.

Explanation:

The answer is explained below

Explanation:

Cancer remains one of the major health concerns of the 21st century. Its occurrence has been increasing with modernization and advancement perhaps due to environmental deterioration and increased exposure to chemicals and radiation.

answer; i believe that the correct answer is (a) restriction);

answerdecreased blood pressure;