This is true. Blood serum caffeine is processed twice as quickly by smokers. LPT: If you quit smoking, cut your caffeine consumption in at least half for at le

This is true. Blood serum caffeine is processed twice as quickly by smokers. LPT: If you quit smoking, cut your caffeine consumption in at least half for at least the first week. Otherwise you will explode with non-nicotine-related episodes of anxiety or nervousness.