in an attempt to improve my efficiency and productivity, i’ve spent some time reading up on the most common natural products & substances that increase activity and energy.
here’s a short (non-exhaustive) list of things i’ve com across:
caffeine:
- increases activity and concentration. stimulates the central nervous system, heart activity and blood pressure.
negative effects: adaption, addiction, nervousness and anxiety, irritability, anything up to cardiac arrhythmia.
overdose (according to wikipedia): 7 to 10 cups of coffee consumed within a short timespan.
guarana:
- contains more caffeine than regular coffee. here, the caffeine is linked to tanning agents, which makes it longer-lasting (it’s released little by little).
same negative side-effects as with pure caffeine.
overdose: 20g guarana powder.
