I wonder why anyone would want to drink something labeled "Deathwish". Their website looks a little creepy. Maybe it's attractive to young people?
I rarely drink coffee anymore. I keep a couple of jars of instant in the cupboard, de-caf and regular.
Teas are so much more economical. Water in mug - tea bag on top - mug in microwave. 2 minutes later, I'm drinking something hot.
I can get 80-100 days of tea for about $1.
100 days of coffee was about $100, brewed at home.
I'm not against coffee consumption. Multiple studies show that one (1) cup of regular coffee (average consumer store brands, brewed at home) {black - no additives}; really does improve heart function, blood-flow, cognitive thinking, and test-taking (students). A little bit of caffine improves statins for pain relief.
It's the high-octane coffees, and all-day consumption that can kill you.
Over time, caffeine blocks receptors in the brain and releases chemicals that stimulate the central nervous system.
The result is less drowsiness, lower physical fatigue, and higher mental awareness – temporarily.
This process is very similar to what the body undergoes during stress.
Caffeine increases levels of the hormone epinephrine which stimulates your sympathetic nervous system; which increases heart rate, blood pressure, and blood flow to your muscles. It decreases blood flow to the skin and inner organs, and your liver dumps glucose.
The constant stress response causes other side effects including; insomnia, nervousness, restlessness, stomach irritation, nausea, vomiting, increased respiration, tremors, chest pain, and ringing in the ears.
If you consume a lot of caffeine, these symptoms may start to seem normal.
High caffeine consumption can worsen conditions like anxiety, bipolar disorder, high blood pressure, glaucoma, and irritable bowel syndrome.
It interacts with medications such as; anticoagulants, antidepressants, anti-anxiety drugs, adenosine, Phenobarbital, and stimulant drugs such as Sudafed.
It can alter the beneficial constitutes of supplements that contain ephedrine, bitter orange, guarana, or kola nut.
One cup of brewed coffee provides from 95-200 mg of caffeine.
An 8-ounce serving of black tea provides from 40-120 mg of caffeine.
An 8-ounce serving of green tea provides 15-60 mg of caffeine.
Soft drinks can provide from 20-80 mg of caffeine per 12 ounce serving.
Energy drinks can provide from 48-300 mg of caffeine per serving.
Haskell CF, Kennedy DO, Wesnes KA, et al. Cognitive and mood improvements of caffeine in habitual consumers and habitual non-consumers of caffeine. (
http://www.ncbi.nlm.nih.gov/pubmed/15678363) Psychopharmacology (Berl). 2005 Jun;179(4):813-25.
Michael N, Johns M, Owen C, et al. Effects of caffeine on alertness as measured by infrared reflectance oculography. (
http://www.ncbi.nlm.nih.gov/pubmed/18537025) Psychopharmacology (Berl). 2008 Oct;200(2):255-60.
Tieges Z, Richard Ridderinkhof K, Snel J, et al. Caffeine strengthens action monitoring: evidence from the error-related negativity. (
http://www.ncbi.nlm.nih.gov/pubmed/15325416) Brain Res Cogn Brain Res. 2004 Sep;21(1):87-93.