Life expectancy varies greatly around the world. See which countries have the highest and lowest life expectancy.

Life, in its most serene moments, often goes unnoticed. The simple routine of waking up, drinking a cup of coffee, walking through familiar streets, or laughing with loved ones may seem unremarkable.

Average life expectancy in the year 1800 was no older than 40 years globally, but longer for those who survived childhood. Modern life expectancies of around 79 years in the United States are largely ...