Are there any readily available herbs or compounds which can improve cognitive function (aka make one smarter)?
There are several herbs and compounds that can have benefits which improve cognitive function. However, it is important to note that while these may show promising results in scientific studies, they are not a sure fire way to make one smarter and should not solely be relied upon. It is also important to talk to a health care specialist before taking any new supplements or herbs. 

Here is a list of readily available compounds to which are proven to improve cognitive function:


1) Ginkgo Biloba: Improves memory and attention by increasing blood flow to the brain.

2) Bacopa Monnieri: Enhances cognitive function by improving memory, attention, and processing speed.

3) Omega-3 Fatty Acids: Improve cognitive function, particularly in older adults.

4) Caffeine: Improves alertness and focus.

5) Rhodiola Rosea: Enhances mental performance, particularly in stressful situations.

6) Creatine: Improves cognitive function, particularly in tasks that require short-term memory and reasoning.

It is important to note that none of these supplements should be taken in excess and that more research is needed to fully understand their effects. Cognitive function is affected by various factors such as sleep, exercise, nutrition, and mental stimulation. A healthy lifestyle that includes these factors is likely to have the most significant impact on cognitive function.
How does those supplements increase cognitive function? Could there be side effects?