What if you could unleash the full potential of your brain? Smart Drugs, also known as Nootropics, are becoming more popular every year and give the promise of enhancing your brain power. Although not quite at the level as seen in the movie and show “Limitless”, these 9 smart drugs are proven to increase your capabilities.
Caffeine is found in food and drinks. Namely, caffeine increases focus and mental stimulation. One of the main mechanisms is by increasing adrenaline.  helps increase alertness and reduce feelings of lethargy  some studies to suggest caffeine has a positive effect on memory formation , though the evidence seems to be contradicting and unreliable . there is some evidence to suggest caffeine can increase mood . This would make sense given caffeine’s influence on dopamine and adrenaline activity . a minor bump in testosterone (by 12% on average) , increased fatty acid oxidation (fat burning) , and notable power output advantages .
Withdrawal symptoms include things like headaches (caused by cerebral blood pressure) and reduced cognition . Other side effects of caffeine include increased heart rate blood pressure  and anxiety .
Caffeine dosage will vary wildly depending on your desires and goals. Someone who does not have much experience with caffeine can feel mentally stimulated with as little as 20 – 40 mg.
A cup of coffee contains anywhere between 80 – 100 mg per cup. This is often a good starting point for heavier caffeine users and those who are trying to see physical enhancements from the drug.
For the purposes of fat burning, 200 mg is the usual dosage and some people even get to 500 mg for acute strength purposes. At these ranges (and anything higher), the effects become dangerous for heart health.