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.
Caffeine takes a certain amount of time to work through your system. One study some years ago showed that the half-life of caffeine in healthy adults is 5.7 hours (see source). This means if you consume 200mg of caffeine at mid-day, you would still have 100mg in you at around 5.45pm.irst, youâre right about caffeine having a half-life of around 6 hours. If you consume 200 mg of caffeine, youâd still have 100 mg in you after 6 hours. Compromised liver function increases half-life by slowing metabolism.