What Determines Human Lifespan?
The Definition of Longevity and How It Differs in Different Cultures Longevity is the length of time a person or group of people can live. It’s different in different cultures, with some cultures living longer than others. On average, in developed countries, people will live until they are 80 years old. The human life span has been increasing since the Industrial Revolution. In fact, people are living longer than ever before. The current life expectancy in the United States is 78.8 years. With the advancement of medical science and technology, this number is expected to increase in the coming years. There are many reasons why people are talking more about human longevity, one being that they want to live longer and have more time to enjoy their loved ones. The average life span of humans has been increasing over time, with an average life expectancy of 78.8 years in the United States as of 2017. In 1900, the life span was 50 years, while it has increased by 15% since then. So...