Final answer:
Without specific details on the patient's death or further historical context, it's not possible to determine the exact age at death. Historical life expectancy was influenced by factors such as medical advancements, social status, and environmental exposure.
Step-by-step explanation:
The question regarding the age of the patient at the time of death doesn't provide sufficient information to give an exact age. However, we can discuss the concept of life expectancy which relates to the average age at death based on the year of birth and gender. In the provided historical context, life expectancy would be considerably lower than it is today due to various factors such as disease, accidents, and limited medical technology. For instance, during the Black Death in England, mortality rates varied significantly with age and social status.
Moving on to the information given for a specific patient admitted to Bicêtre Hospital in 1840 with loss of speech at age 30 and a history of epilepsy since childhood, it's difficult to determine the exact age at death. However, considering historical life expectancy trends and medical advancements, it's reasonable to assume the patient would have had a shorter lifespan compared to modern-day standards.
Meanwhile, the general life expectancy in the United States in 2015 was 77 years for males and 82 for females. Factors influencing aging and death range from genetic aspects, like the shortening of telomeres, to environmental impacts such as exposure to mutagens. Therefore, without specific details on the patient's death, an exact age cannot be provided.