Increased life expectancy refers to the rise in the average number of years a person is expected to live. This trend is influenced by various factors, including advancements in medical technology, improved healthcare access, and better living conditions. As a result, many people now live longer, healthier lives compared to previous generations. Several factors contribute to this phenomenon, such as the decline in infectious diseases due to vaccines and antibiotics, as well as better nutrition and sanitation. Countries like Japan and Switzerland often report some of the highest life expectancies, showcasing the impact of effective public health policies and lifestyle choices.