Discribe how disease affects cognition.

Many health conditions affect the brain and pose risks to cognitive function. The conditions include heart disease and high blood pressure can lead to stroke and changes in blood vessels in the brain that can lead to dementia.

To stay clear of the virus use good sanitation (wash your hands) wear masks and avoid close contact with people

Chemotherapy works by stopping or slowing the growth of cancer cells, which grow and divide quickly. It can also harm healthy cells that divide quickly, such as those that line your mouth and intestines or cause your hair to grow. Damage to healthy cells may cause side effects. Chemotherapy kills cells that are in the process of splitting into 2 new cells. Because cancer cells divide much more often than most normal cells, chemotherapy is much more likely to kill them. Some drugs kill dividing cells by damaging the part of the cell's control centre that makes it divide.