BPS 1101 Lecture Notes - Lecture 1: Dracunculus Medinensis, Improved Sanitation, Food Spoilage

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We live in a unique ime and place. Current life expectancy higher than at any other ime in history. Canada has one of the highest standards of living in the world. Longer life span and improved quality of life. World life span much lower than in canada, but sill almost double that throughout most of human history. In some countries in the world, life span is actually lower than life expectancy in the stone age. 30 to 35 years for most of recorded history. 30 to 35 years through the stone age. Most improvements over the last 150 years. Life span is an educated guess writen records and archaeology. Important to remember that only important people make it into historical records, life expectancy is mostly the ordinary people. Most improvements in life span have happened over last 150 years. Variaions smoothed out as records are not precise.

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