While fatigue affects about 1/3 of the general population [80], the chronic fatigue syndrome, defined as fatigue lasting longer than 6 months, occurs only in ~ 1% of the general population [81, 82] and is usually associated with impaired memory, cognitive deficits, muscle and joint pain, headaches, non-restorative sleep, post-exertional illness as well as psychological issues [83,84,85]
Annu Rev Biochem (2012) 81(1):50732
This often happens when: grinding very coarsely to avoid bitterness using pre-ground coffee thats too coarse for the brew method adjusting grind size too far in one direction Having a grinder that allows small, repeatable adjustments makes this much easier to fix
Even though consumption remains significant among the younger population and increases as people get older, its still lower than it would be if you lowered the age to 18. A 2014 review of the research published in the Journal of Studies on Alcohol and Drugs bore this out: Although many young people disobey the drinking age, the evidence overwhelmingly suggests that it has depressed drinking and saved lives