What age do most people show signs of disease?

The age at which most people show signs of disease varies widely depending on the specific disease and individual risk factors. Some diseases, such as certain genetic disorders, may manifest in infancy or childhood, while others, such as many types of cancer, are more likely to develop in adulthood or old age. The prevalence of some diseases also increases with age due to factors such as genetic mutations, wear and tear on the body, and cumulative exposure to environmental and lifestyle factors.

For example, some diseases that commonly manifest in childhood include certain genetic disorders, congenital abnormalities, and infectious diseases such as measles, chickenpox, and mumps. In contrast, conditions like heart disease, stroke, cancer, and Alzheimer's disease are more prevalent among older adults.

There are also diseases that can occur at any age, such as infectious diseases like the flu or pneumonia, which can affect people of all ages, or traumatic injuries that can happen to anyone at any time.

Overall, the age at which a person may show signs of a particular disease can vary significantly and is influenced by numerous factors, including genetics, lifestyle, environmental exposures, and overall health.