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Health Canada reports that because caffeine tolerance differs between each person, and thus causes various health effects to arise, it is difficult to link the precise level of caffeine to health effects.
The recommended daily intake of caffeine is,
children aged 4-6: 45 mg
children aged 7-9: 62.5 mg
children aged 10-12: 85 mg
Determining how much caffeine a person 13 and older should consume has not been developed as because of the lack of insufficient data, but Health Canada recommends that no more than a daily intake of 2.5 mg/kg body weight should be taken.
The presence of caffeine can increase heart rate, dilate pupils, tighten up muscles, and cause the release of glucose into the blood stream, which is used for extra energy. These symptoms can be considered beneficial, especially when one is looking for a jump in their energy. Another effect of caffeine that could be considered as good, is that caffeine causes a raise in dopamine levels which stimulate the pleasure parts of the brain. The downside to this is that this may also be the answer to why caffeine is addictive.
Caffeine has many side effects, such as stimulating the central nervous system and can produce restlessness, headaches, irritability, and also increases heart rate and blood pressure. Caffeine is also diuretic and causes a loss of fluid, leading to a dehydrating effect. Another long-term problem is the effect of caffeine on sleep. Caffeine has a half-life in the body of six hours. If caffeine is ingested a few hours before sleeping, that person may bot obtain the restful benefits of deep sleep.
The recommended daily intake of caffeine is,
children aged 4-6: 45 mg
children aged 7-9: 62.5 mg
children aged 10-12: 85 mg
Determining how much caffeine a person 13 and older should consume has not been developed as because of the lack of insufficient data, but Health Canada recommends that no more than a daily intake of 2.5 mg/kg body weight should be taken.
The presence of caffeine can increase heart rate, dilate pupils, tighten up muscles, and cause the release of glucose into the blood stream, which is used for extra energy. These symptoms can be considered beneficial, especially when one is looking for a jump in their energy. Another effect of caffeine that could be considered as good, is that caffeine causes a raise in dopamine levels which stimulate the pleasure parts of the brain. The downside to this is that this may also be the answer to why caffeine is addictive.
Caffeine has many side effects, such as stimulating the central nervous system and can produce restlessness, headaches, irritability, and also increases heart rate and blood pressure. Caffeine is also diuretic and causes a loss of fluid, leading to a dehydrating effect. Another long-term problem is the effect of caffeine on sleep. Caffeine has a half-life in the body of six hours. If caffeine is ingested a few hours before sleeping, that person may bot obtain the restful benefits of deep sleep.
Great Post! I think you did a really good job at looking at both sides of the story. There is a really cool video from Science in Seconds on Coffee (http://www.scienceinseconds.com/episodes/Coffee) that also deals with many of the issues surrounding caffeine.
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