Because they are the weakest links
Air pollution can affect vulnerable populations such as children, the elderly, people with pre-existing respiratory or cardiovascular conditions, and those with weakened immune systems the most. These groups may experience exacerbated health issues or increased susceptibility to respiratory infections due to exposure to air pollution.
It affects the elderly, those with HIV/AIDS, very young children, & those with a somehow compromised immune system the most.
It is an indicator of poor air quality from air pollution. This pollution is most often ozone or particulates. Typically it indicates that the air is unhealthy for children, the elderly, and sensitive groups.
Children and the elderly.
There are a few different age groups that Yellow Fever affected the most. Yellow Fever tended to affect young children, elderly, and those with a compromised immune system the most.
Most patients with pernicious anemia are older, usually over 60
increasing acidity
young children
The most vulnerable groups to dehydration include young children, the elderly, and individuals with chronic illnesses. Young children have higher fluid needs relative to their body size and may not recognize their thirst. The elderly often have diminished thirst sensations and may also have health conditions that affect hydration. Additionally, people engaging in intense physical activity or those in hot climates are at increased risk as they lose fluids more rapidly.
No I don't think so most children are to busy learning about the world around them.
In children, the most common viruses that cause pericarditis are the adenovirus and the cocksackievirus (which is most likely to affect children during warmer weather).
The most common medical conditions affecting the aging are coronary heart disease, stroke, cancer, and the flu. Accidents resulting in injuries such as hip fractures are also common among the elderly.