7. Malaria is a disease caused by parasites, which are spread by female mosquitos called Anopheles. Mosquitos breed in water, and when they bite a person infected with malaria, they can spread the infection to other people. Symptoms of malaria include fever, headache and shivering.iseases Caused By Water Pollution. Water is essential to human life. Your body needs water for hydration and to facilitate various functions of the body such as digestion, metabolism, and elimination of waste. However, one of the biggest problems of mankind today is the poor quality of water in many parts of the world.
Advertisement. It only takes 45 minutes for 99% of the caffeine to be absorbed through these membranes. In humans the half-life for caffeine is anywhere from 4 to 6 hours on average, which explains why the average energy drink or coffeeâs effect lasts about 4 to 6 hours.dvertisement. It only takes 45 minutes for 99% of the caffeine to be absorbed through these membranes. In humans the half-life for caffeine is anywhere from 4 to 6 hours on average, which explains why the average energy drink or coffeeâs effect lasts about 4 to 6 hours.
In pregnant women, the half-life of caffeine is nine to eleven hours, meaning that the drug will stay in a pregnant womanâs body for nearly one full day. Caffeine has a half life of roughly 2.5 to 4 hours. Which means that in that amount of time half of the caffeine will have been metabolized by your body. Caffeine only last a few hours depending on the consumption and your activity.