- Caffeine can restrict blood flow to the heart muscle by up to 39% during exercise. This can cause tissue scarring which is a major cause of heart attack.
- Caffeine increases Cortisol levels (catabolic Hormone that breaks down muscle tissue and allows more fat storage)
- Caffeine is a Central Nervouse System (CNS) stimulant.
- Caffeine should NOT be taken with NO2(Nitric Oxide) or Creatine products as it is a vasio constrictor and a diuretic which will totally cancel out the effect of creatine and stifle the effect of nitric oxide. For some reason there is a trend of US companies putting huge doses of caffeine into their so called Nitric oxcide boosters and creatine products. We would recommend that you steer clear of any company doing this as they obviously have a poor understanding of basicsupplementation. Check your lable for caffeine also referred to as methyl xanthine.
- Caffeine will give you a short term mental "buzz".
- Caffeine has a thermogenic effect on the body.
- Caffeine has no muscle building or anabolic properties, in fact it will hinder muscle growth not only by slowing the amount of blood oxygen and nutrient flow, but can also run down the nervous system and adrenal system.
- Caffeine is Toxic! Your liver has to detoxify caffeine. That uses resources that your liver could be using to detoxify all the other toxic substances you're exposed to. A single dose of caffeine takes more than 24 hours to be eliminated from your body. Caffeine's half-life is said to be 3-7 hours; in that time, you will have detoxified and eliminated only half of the caffeine.
- Why do plants produce caffeine? Because it's toxic. Caffeine poisons the plant's predators.
- Pure crystalline caffeine has killed people.
The spider on marijuana drifted off before finishing the job. The spider on benzedrine, an upper, worked energetically but without much planning. The spider dosed with chloral hydrate, a sedative, soon fell asleep.
To the surprise of Dr. Noever et al, caffeine did the most damage of all the substances tested. The spider dosed with it proved incapable of creating even a single organized cell, and its web showed no sign of the “hub and spokes” pattern fundamental to conventional web design.
What does the web of a caffeinated spider (which can hardly be accustomed to the jolt of a morning latte) have to do with human behavior? Unlikely as it sounds, it may be the most vivid illustration of caffeine’s disorienting effect on caffeine-sensitive people, many of whom may be misdiagnosed as mentally ill:
“Caffeine-induced psychosis, whether it be delirium, manic depression, schizophrenia, or merely an anxiety syndrome, in most cases will be hard to differentiate from other organic or non-organic psychoses….The treatment for caffeine-induced psychosis is to withhold further caffeine.”
Clinical Management of Poisoning and Drug Overdose, 3rd ed., 1998
Michael W. Shannon, MD, MPH, Director, Lead and Toxicology Clinic, The Children’s Hospital; Associate Professor of Pediatrics, Harvard Medical School; Staff Toxicologist, Massachusetts Poison Control System; Lester M. Haddad, MD,Clinical Professor in Family Medicine, Medical University of South Carolina; Emergency Physician and Active Staff, Bon Secours St. Francis Xavier Hospital; James F. Winchester, MD, Professor of Medicine, Division of Nephrology, Georgetown University Medical Center
Study participants were regular coffee drinkers. After abstaining from coffee for 36 hours, their blood flow was measured before and after exercise. Then they ingested caffeine tablets (equal to 2 cups of coffee) and repeated the same test to measure blood floor prior to and after exercise. The caffeine did not affect heart blood flow when the participants were at rest. However, measurements taken immediately after exercise showed a 22% reduction in heart blood flow after they'd taken the caffeine tablets, compared to their previous results. Participants who exercised in a chamber simulating high altitude (15,000 feet) experienced an even greater reduction in blood flow—39% lower.
While caffeine is a stimulant, and previous studies suggest that it may enhance athletic performance, this study suggests the opposite. Caffeine does stimulate the brain, increasing awareness and concentration. Athletes who ingest caffeine before performing may feel that they are enhancing performance, but these researchers suggest that the athletes are simply more alert, awake and focused.
Sport supplements loaded with caffeine!
The current trend in the sport supplement industry especially US products is to load them with at least 200mgs of Caffeine per serve to give the consumer that false "BUZZ" to make it feel as though the product is actuyally doing something for them! Usually it is a cheap way to mask the innafectiveness of a weak or watered down formula.
However with the latest as listed above it now appears that caffeine can actually suppress performance especially your bodies ability to carry blood to the heart!
Lets take a closer look at some of the side effects associated with caffeine loaded products:
1/ Caffeine does not give you energy. It stimulates your nervous system and adrenals. That's not energy, that's stress.
Imagine going to a bank for a loan. The loan officer agrees to your loan. But as you leave the bank you notice the fine print - the loan has to be repaid at 75% interest! The 'energy' that you think you get from caffeine is really just a loan from the adrenals and liver, and the interest you have to pay is very high.
Stress is a major factor in disorders such as anxiety, insomnia, depression, ulcers, rheumatoid arthritis, headache, hypoglycemia, asthma, herpes, hypertension and heart disease. And yet hospitals provide coffee and tea, which put your body into stress!!! DHEA is our vitality hormone. A decreased level of DHEA is a cause of aging. Caffeine consumption leads to DHEA deficiency.
2/Caffeine DOES NOT improve learning or memory. In fact the exact opposite is true. Scientific studies show that caffeine as normally consumed can reduce cerebral flow by as much as 30%. That means less oxygen to the brain and reduced memory and cognition. It is also believed that this reduced blood flow to your head is a contributor to vision and hearing loss typically associated with aging.
3/Caffeine lowers the stress threshold in virtually everyone. That is, if you have had caffeine, it will be easier for you to suffer from emotional stress. (Therefore, when research is done that is designed to show how safe caffeine is, any test subject who is under significant stress is removed from the study).
4/Women who consume more than 24 ounces of coffee (6 moderate cups) per day had almost twice the risk of heart attack compared to non-coffee drinkers. Moderate coffee drinkers with high cholesterol had more than seven times the risk of heart attack, while heavy coffee drinkers had eighteen times the risk of non-coffee drinkers!
5/A single cup of coffee can reduce iron absorption from a meal by as much as 75%. Caffeine also depletes your supplies of thiamin and other B vitamins, calcium, magnesium, potassium, and zinc.
6/Caffeine increases calcium loss and risk of osteoporosis. In one large study, the risk for hip fracture for those women who consumed the most caffeine was 300% greater than it was for the group that consumed little or no caffeine.
7/Caffeine AT ANY TIME of the day can cause sleep problems, especially if you are under stress.
People do not develop a tolerance to the anxiety-producing effects of caffeine. Rather, people simply become accustomed to the feelings of stress, irritability and aggressiveness produced by the drug.
Caffeine contributes to depression in well-defined ways. This is particularly due to the withdrawal effect, which can cause headache, depression and fatigue, even in light users. Cherniske reported that 90% of people who came to him who suffered from depression and gave up caffeine completely for 2 months reported that their depression went away!
AN ARTICLE FROM "PUB MED"
CAFFEINE COUNTERACTS THE ERGOGENIC ACTION OF MUSCLE CREATINE LOADING.
Vandenberghe K, Gillis N, Van Leemputte M, Van Hecke P, Vanstapel F,Hespel P.
Faculty of Physical Education and Physiotherapy, Department of Kinesiology, Katholieke Universiteit Leuven, Belgium.
This study aimed to compare the effects of oral creatine (Cr)supplementation with creatine supplementation in combination with caffeine (Cr+C) on muscle phosphocreatine (PCr) level and performance in healthy male volunteers (n = 9). Before and after 6 days of placebo, Cr (0.5 g x kg-1 x day-1), or Cr (0.5 g x kg-1 x day-1) + C (5 mg x kg-1 x day-1)supplementation, 31P-nuclear magnetic resonance spectroscopy of the gastrocnemius muscle and a maximal intermittent exercise fatigue test of the knee extensors on an isokinetic dynamometer were performed. The exercise consisted of three consecutive maximal isometric contractions and three interval series of 90, 80, and 50 maximal voluntary contractions performed with a rest interval of 2 min between the series. Muscle ATP concentration remained constant over the three experimental conditions. Cr and Cr+C increased (P < 0.05) muscle PCr concentration by 4-6%. Dynamic torque production, however, was increased by 10-23% (P < 0.05) by Cr but was not changed by Cr+C. Torque improvement during Cr was most prominent immediately after the 2-min rest between the exercise bouts. The data show that Cr supplementation elevates muscle PCr concentration and markedly improves performance during intense intermittent exercise. This ergogenic effect, however, is completely eliminated by caffeine intake.
Caffeine is nothing but a socially accepted drug