Caffeine is an amphetamine stimulant that may keep you awake and more active, but it increases your heart rate and makes you more prone to cardiac arrest. Cocaine, nicotine, ecstasy, and caffeine are all stimulants that taken in excess can be harmful to your health and sometimes fatal.
"Caffeine is a poisonous alkaloid that causes kidney stones and kidney damage.
It can cause irreversible heart disease with arrhythmias, tachycardia, later requiring pacemakers. It can also cause birth defects.
It causes hypertension, strokes, higher cholesterol & triglyceride blood levels.
Coffee is a carcinogen. It's a BURNT bean. Coffee accelerates hypoglycemia into diabetes, and for many, causes ulcers as it is acidic. It can also burn the stomach lining so badly that one stops making stomach acid, has burps all the time due to lack of stomach acid.
Even a dose in the AM is still with us at midnight, mixed into the food deep in our gut. You will trick your body clock into staying awake for 18 hours, which is abnormal. Then you will only be able to sleep six hours due to the residues of caffeine in your blood the next morning. You come awake without sufficient sleep, feeling draggy but unable to get back to sleep due to caffeine in your colon. Within a few months of this, there is permanent nervous system damage, lowered I.Q.
Here's one more. Caffeine causes hardening of the arteries in the brain, low brain circulation and is suspected of causing Alzheimer's by one holistic healer I know.) Coffee is a diuretic, causing excretion of the body's minerals and vitamins through the bladder. This ages our skeletons prematurely giving dowager's hump, curved fingers, dissolving bones, osteoporosis, hip replacement. Your urine is washing away calcium, magnesium, trace minerals, your BONES - your very SKELETON is dissolving and departing thru your BLADDER.
Worse, black brew is attracted to the pancreas where it causes cancer. Holistic healers know this as they read irises of the eye. Every syndrome leaves its mark on the iris. That black spot at the 7 o clock portion of the right eye, (meaning on the right side of your body, close to pupil, 7 o clock position if it were a clock face IS the pancreas.)
If you want benign caffeine, switch to Yerba Mate tea (a smooth, mild caffeine) or green tea which has the upside of protective anti-oxidants. Even a little bit of caffeine in your bloodstream affects your sleep adversely and is diuretic, hence causes excretion of the body's minerals. Few people have given thought to the insidious way caffeine can affect sleep, even 12 hours after it is ingested. Caffeine mixes with the food in your digestive tract which isn't eliminated until the morning of the day after it's eaten. Even if you have caffeine Friday morning, 19 hours later, Saturday at dawn, while you're trying to get your last three or four hours of sleep, the ones that count, Friday's caffeine dose has finally reached your lower bowel where most absorption is taking place, giving a FULL jolt of caffeine. You wake with a CLENCH, look at the clock and realize you haven't had a full eight. You try to go back to sleep but your brain is going, clicking away, stimulated by the last and final jolt of caffeine absorption. Unless you do mantra to give the brain something benign to chew on, you're likely to toss and turn and wake up too soon. But this isn't only Saturday morning, it's Sunday, Monday and so on."
http://www.healthfree.com/paa0039.htm