It's rarely heard in Indonesia, people who do not like coffee. Coffee containing caffeine has negative and positive effects of coffee for health. Some of the negative and positive effects of coffee / caffeine include:

Positive effects Coffee:

• Coffee can reduce the risk of Alzheimer's disease.
• Coffee can reduce the risk of Parkinson's disease.
• Coffee can help improve short-term human memory.
• This is mainly because the caffeine they contain chemically stimulates and helps us to capture and focus on the information received better for a short period.
• Coffee can help relieve headaches, caffeine content can help improve the effects of drugs that work to relieve pain temporarily like aspirin, midol and excedrin. Many of the headache and migraine medications contain small amounts of caffeine.
• Coffee is an effective antioxidant.
• Coffee is a good diuretic. Drinking coffee makes people urinate more often. This is great for helping the body get rid of all the substances or ingredients that are no longer needed by the body.
• Coffee also helps reduce the risk of kidney stones.

Note:

• Alzheimer's disease is called alz-zhai-me, a complex and progressive brain dysfunctional disease. Alzheimer's disease is not an infectious disease.
• Alzheimer's disease is a state in which the power of a person's memory degenerates with the teruknya so that people can not afford to take care of themselves.
  Parkinson's disease (paralysis agitans) is the first neurodegenerative disease to be discovered in 1817 (An Essay on the Shaking Palsy). James Parkinson.
• Antioxidants are substances that the body needs to neutralize free radicals and prevent damage caused by free radicals to normal cells, proteins, and fats. Antioxidants stabilize free radicals by supplementing electron deficiencies possessed by free radicals, and inhibit the occurrence of a chain reaction of free radical formation which can cause oxidative stress

Negative Effect Coffee:

• Coffee can cause constipation or difficult bowel movements.
• Coffee causes tartar and teeth to become yellow bia consumed in excessive amounts.

Researchers at the Florida Alzheimer's Disease Research Center say the daily dose of coffee is about 500 milligrams of caffeine or equal to 5 cups of 236.5 milliliters of coffee. The dose of 500 milligrams of caffeine or equal to 5 cups of size 236.5 milliliters of coffee, it is mentioned not harmful to health, but it is intended for people who do not have high blood and pregnant women. In the discovery that made mice as an experiment, showed that rat rats consuming caffeine had the same brain conditions as mice of normal age, and away from Alzheimer's symptoms.