Who is John Snow and what are his public health accomplishments?
John Snow is seen as the father of epidemiology. He narrowed down the area of increased cholera in Soho. He mapped the area and his findings for evidence. He was able to disprove the miasma theory and at the same time proved that cholera was water borne. He had the pump removed and they were halt the progression of the disease in that area.
How often should someone get a colonoscopy?
Most physicians recommend it every 5 years starting at age 50. If there are gastrointestinal problems or family history then the physician may recommend them sooner to rule out medical conditions.
What happens to the body when caffeine is consumed?
Caffeine can make you feel awake and alert however it can also cause jitters. It can also cause or relieve headaches. Caffeine is a diuretic, it may make you use the bathroom more often. Your heart rate and blood pressure can rise from the caffeine. It also interferes with how your body absorbs calcium and can result in issues with osteoporosis later in life. Caffeine may also interfere with fertility. Too much caffeine can lead to diarrhea and irregular heartbeat.