How gose high population density affect the health of organisms?

High population density can lead to increased competition for resources such as food, water, and shelter, which can strain the health of organisms. It can also facilitate the spread of diseases due to closer proximity among individuals, resulting in higher infection rates. Additionally, environmental stressors, such as pollution and habitat degradation, often accompany dense populations, further impacting the health and well-being of organisms. Overall, these factors can lead to decreased survival rates and lower reproductive success.