All Categories 30-hour shifts Adderall addiction adversity airliners airplaine alcohol alert alertness anger AP appetite suppressant athlete awake B vitamins baby banker banking benefits best time biological clock blood drawing blood sugar blood test bowels breakfast BUDS business travelers cab driver cacao Caffeine Caffeine & Sports Caffeine at Work caffeine cortisol caffeine makes me tired caffeine makes you tired caffeine mints caffeine on brain caffeine tolerance can you drink coffee while intermittent fasting can't sleep cancer chocolate cholesterol circadian cocoa coffee cola combat comeback computer cosmetics CRT cup decaf decaffeinated decaffeination dependence dependency depression diabetes diet doctor doze dozing drinks drip drive driving drowsiness drowsy drugs dry eyes education energy Energy Drinks enhancer espresso exam exams exercise eye strain eyes fall fasting finals foods Foreman frequent flyers fresh breath Giveaway GRE green tea guarana gum habit half-life headache health heart disease high hopelessness How Caffeine Works How long it takes caffeine to work I.Q. infant intelligence intermittent fasting intoxication investment banker jet lag jets job jobs keep busy kola law school LCD long hours Lyft marijuana meal memory mental illness menthol Metabolism methamphetamine metro migraine Migraines military mint Mints monitor motivated motivation mug natural Navy newborn night shift nod off nurse occupation overeating overnight pay peppermint percolate performance perseverance pregnancy Productivity Prometheus Provigil Ramadan regular regularity Ritalin SAT school Science of Caffeine SEAL SERE Sinatra sleep sleep deprivation sleep habits sleep hygiene sleep training sleepiness sleeping Sleeping & Resting sleeping and resting sleeping in sleeping late smart smarter socializing soda Sources of Caffeine sports stay awake staying awake students study studying sublingual subway success symptoms synthetic taxi tea test tests THC tiredness trades train training trucker truckers trucking tryptophan turkey Uber vocation wakefulness war weed weight loss withdrawal Work workout