They are robust, seed-eating birds with strong bills. The family ranges in size from the 12-cm (4.7-in), 11.5-g (0.40-oz) and up orange-breasted bunting to the 25-cm (9.8-in), 85-g (2.99-oz) black-headed saltator. They are typically associated with open woodland. The sexes usually have distinctive appearances.
This caffeine addiction diagnosis tool can give you a good idea just how addicted to caffeine you really are. While there is still ongoing debate as to how caffeine should be classified substance wise, anyone that has ever tried to quit caffeine can attest that the withdrawal symptoms can be quite uncomfortable.
Three Levels of Caffeine Sensitivity. Based on the genetic data we have to date, we can identify people with 3 distinct levels of caffeine sensitivity, which in turn determines to what degree the effects of caffeine will be realized. 1. Hypersensitive to Caffeine. These people react to very small amounts of caffeine. Even at amounts less than 100 mg, people who are hypersensitive to caffeine can experience overdose symptoms such as insomnia, jitters, and an increased heartbeat. For these people, it can take as much as twice as long for caffeine to metabolized.