Health Effects of Caffeine

Positive effects

1. Acetylcholine is associated with concentration, attention, learning, & memory but there is no conclusive proof waiting currently that caffeine has any effect on memory & cognitive function.
2. Low dose of caffeine show increased alertness and reduce fatigue.
3. Caffeine has been shown to improving the metabolic rate.

Negative effects

1. Caffeine can increase your blood pressure in non habitual consumers. High blood pressure is related with an increase in strokes, & cerebral vascular disease, which in turn improve the risk of multi-infarct dementia.
2. Caffeine may reduce control of fine motor movements (e.g. producing shaky hands).
3. Caffeine can increase cortical secretion, some tolerance is developed.
4. Caffeine can contribute to increased insomnia & sleep latency.
5. Caffeine is addictive. Caffeine withdrawal can produce headache, fatigue & decreased alertness.
6. High doses of caffeine (300 mg or higher) can cause anxiety.
7. High caffeine consumption accelerates bone loss at the spine in elderly postmenopausal women.