BPS 1101 Midterm: Intro and History.docx

• School: University of Ottawa
• Department: Biopharmaceutical sciences
• Course: BPS 1101
• Professor: William Ogilvie

Document Summary

Approx 30-35 years for most recorded history. Most scientific discoveries started after the year 1850. Improved life expectancy over the last 150years. Heart disease, cancer, stroke, lower respiratory infections, traffic accidents, diabetes: all of these occur because your body wears out. Outhouses used to be common in cities. Chamber pot used when cesspits were available. Sewers often involved open sections (ex: underground sewers in paris) Nature does not make pure water: things that live in the water, guinea worm: water bug lives in your muscles, then eventually it comes out. Major improvement was chorination: final cleansing to kill any bacteria, acts as a preservative for water. Food spoilage was very common before refrigeration: 50 years ago; common to preserve food in an ice house, ice harvest was a common spring event: carve out large blocks of ice and then. Greatest achievement in medicine: immunization (vaccination, very successful for viral diseases, smallpox. Only exists in labs and biological weapons.