Articles tagged with Caffeine
A study published in Perspectives on Psychological Science suggests that Four Loko's unique flavor profile may contribute to its high intoxication rate, rather than caffeine. The 'Four-Loko effect' highlights how unusual flavors can heighten the effects of alcohol, making it more potent.
New research suggests that caffeine is a rich source of antioxidants in the diet, helping protect against diseases like Alzheimer's and heart disease. The study provides detailed calculations on how caffeine interacts with free radicals, bolstering evidence for its healthful antioxidant effects.
A recent surge in reports of air traffic controllers falling asleep on the job highlights the need for drastic change to improve safety. Researchers suggest that changes such as extended breaks between shifts and mandatory rest periods could mitigate the problem.
A review article in the Journal of Caffeine Research suggests that caffeine disrupts glucose metabolism, increasing insulin resistance and exacerbating blood glucose levels in people with diabetes. The study reveals potential harm of caffeine consumption for over 220 million individuals worldwide affected by type 2 diabetes.
Researchers have discovered two genes linked to caffeine consumption, revealing a genetic basis for individual differences in caffeine intake. The study found that individuals with specific genetic variants consumed significantly more or less caffeine than others, highlighting the importance of genetic factors in shaping daily habits.
A double-blind study found that high-caffeine consuming boys experience a greater rush and more energy from caffeine compared to girls. The study also revealed differences in response to caffeine between genders, including increased blood pressure and heart rate in males.
Researchers warn of potential health dangers from mixing energy drinks with alcohol, citing concerns over caffeine intake and increased risk of alcohol-related consequences. Experts advocate for regulatory changes, education, and manufacturer warnings to mitigate these risks.
Researchers found that adding caffeine to lentiviral production protocols increases virus production by 3-8 times. This simple and inexpensive strategy may significantly decrease the cost of lentiviral production for research and clinical uses.
A new study published in the journal Addiction found that energy drinks do not offset the sedating effects of alcohol and do not improve sustained attention or reaction times. The study suggests that public education and warning labels should be considered regarding the safety of caffeinated alcoholic beverages.
A study published in The Journal of Pediatrics found that 75% of children consume caffeine daily, with more caffeine associated with less sleep. Researchers also discovered no link between caffeine and bedwetting in children.
Research suggests that moderate energy drink consumption can enhance behavioral control, but increased caffeine intake leads to decreased mental fatigue and impaired cognitive performance. Additionally, the study found that adolescents who consumed more caffeine had higher diastolic blood pressure and ate more high-sugar snack foods.
Research reveals that consuming caffeinated alcoholic beverages can increase the risk of heavy intoxication, intending to drive after drinking, and experiencing or committing sexual assault. The article highlights the need for systematic research into this growing public health problem.
A new study found that energy drink consumption is strongly associated with increased risks for heavy drinking and alcohol dependence among young adults. High-frequency energy drink users were more likely to get drunk at an earlier age, drink more per session, and develop alcohol dependence compared to non-users or low-frequency users.
A study examines the impact of energy drink consumption on athletic performance and body composition, finding that caffeine is a key contributor to performance enhancement, while weight loss benefits are uncertain and may be linked to diminishing returns.
New research reveals that high doses of caffeine increase muscle power and endurance during sub-maximal activities, such as everyday tasks or running a marathon. The study's findings have implications for the use of caffeine in sports to enhance performance, although caffeine remains unlisted by the World Anti-Doping Agency.
A new study found that coffee consumption can prevent high-blood sugar development and improve insulin sensitivity in laboratory mice. Caffeine is believed to be the primary ingredient responsible for this effect.
A new study found that caffeine can help shift workers make fewer mistakes and improve their performance in tasks such as driving and neuropsychological tests. The researchers reviewed data from 13 trials studying the effects of caffeine on shift work and found a significant reduction in errors made by participants.
Research suggests a possible association between chocolate consumption and depression, with individuals screening positive for depression consuming more chocolate than those without. The study found no correlation between other antioxidant-rich foods and mood symptoms.
A large-scale study by the Kaiser Permanente Division of Research found that moderate coffee drinkers had a lower risk of hospitalization for heart rhythm disturbances. The researchers followed 130,054 men and women and discovered an 18% lower risk among those who consumed four or more cups of coffee daily.
A new study shows that people tend to compress time when they believe two events are connected, such as drinking caffeine and feeling energized. This effect is due to the participants' underestimation of the time-to-onset of products they have used in the past.
A recent study challenges the claim that caffeine aggravates tinnitus, finding no significant improvement in symptoms from caffeine abstinence. Instead, participants experienced increased symptoms during acute withdrawal phases.
A study published in Hepatology found that patients with chronic hepatitis C virus who consumed more than 308mg of caffeine daily had milder liver fibrosis. The protective effect was greatest when caffeine came from coffee sources, suggesting a potential therapeutic benefit for moderate coffee consumption.
A recent study by UB neurobiologist Jennifer L. Temple found that boys and girls have different levels of caffeine's appealing value, with males working harder to obtain caffeinated drinks. The research also explored the effects of acute and chronic caffeine consumption on blood pressure, heart rate, and hand tremor in teenagers.
A new study finds that consuming caffeinated 'alcohol-energy' drinks with alcohol may lead to impaired cognitive function and increased risk of disasters. Caffeine does not reverse the negative impact of alcohol on cognition, making people more likely to believe they are not intoxicated.
A recent study published in Epilepsia found that current cigarette smokers are at a significant risk of seizure. The study analyzed data from over 116,000 female nurses and found that long-term moderate caffeine or alcohol use is not associated with an increased risk of seizures or epilepsy.
A new study found that caffeine from coffee interferes with sleep in night-shift workers and worsens its effects as people age. The study suggests that reducing coffee consumption can help improve daytime recovery sleep.
A Canadian study found that giving caffeine to newborn rats causes detrimental effects on sleep and breathing patterns in adulthood. Adult rats showed reduced sleeping time, increased time to fall asleep, and fragmented non-REM sleep. Breathing problems were also more common in caffeine-treated rats.
A study found that high coffee consumption is associated with an increased risk of atrial fibrillation, a common arrhythmia. Patients with high caffeine intake and low Mediterranean diet adherence had higher rates of arrhythmias, suggesting a potential link between coffee consumption and cardiovascular disease.
Researchers at the University of South Florida found that caffeine significantly decreased abnormal levels of beta amyloid protein in the brains and blood of Alzheimer's mice, reversing their memory impairment. Caffeine administered to elderly non-demented humans also affects their blood levels of β-amyloid.
A recent study published at the SLEEP 2009 conference found that caffeine use prevented increased risky behavior in individuals subjected to extreme sleep deprivation. Despite prolonged sleep deprivation, participants who consumed caffeine showed no significant increase in impulsive risk-taking behavior, unlike those receiving a placebo.
A study of 320 children found that those who slept less consumed more caffeine, had more screen time, and had a higher body mass index. Reduced sleep duration was also associated with increased symptoms of sleep disorders.
A study by Indiana University researchers found that the ingestion of caffeine within an hour of exercise can reduce the symptoms of exercise-induced asthma (EIA). Smaller amounts of caffeine also reduced wheezing, coughing and other symptoms of EIA. The study extended earlier research on caffeine's effectiveness in reducing EIA symptoms.
A teenage boy was hospitalized due to acute caffeine intoxication from consuming stimulant chewing gum. The boy's symptoms included agitation, abdominal discomfort, and increased urination, and he required close monitoring before recovering.
Doctors warn of muscle problems caused by excessive cola consumption, citing cases of hypokalaemia and paralysis. The review of patients who consumed up to nine litres of cola a day highlights the need for safer drink options and moderation.
Researchers studied brain electrical activity and blood flow during caffeine withdrawal, finding increased brain blood flow and changes in EEG that relate to common withdrawal symptoms. The study also showed no net beneficial effects of chronic caffeine administration.
A study by University of Illinois professor Robert Motl found that caffeine reduces muscle pain during high-intensity exercise in both caffeine-naïve individuals and habitual users. The study suggests that pain during exercise may not show tolerance effects to caffeine.
A study by Henry Ford Health found that energy drink consumption increased blood pressure and heart rate in healthy adults. However, the effects could be particularly concerning for individuals with pre-existing heart conditions, highlighting the need to avoid energy drinks.
A new study aims to determine whether consuming caffeine during pregnancy can increase the unborn baby's risk of developing childhood leukemia. The research, led by Dr. Marcus Cooke, will examine DNA changes in newborn babies and compare them to caffeine consumption levels.
A new research study suggests that high caffeine consumption may be linked to a greater tendency to hallucinate. People who consume more than seven cups of instant coffee per day are three times more likely to report hearing voices when there is no one around.
A study published in the FASEB Journal found that even a low dose of caffeine ingested during pregnancy can affect fetal heart development and lead to decreased cardiac function and increased body fat in males. Researchers exposed pregnant mice to varying levels of caffeine, resulting in adverse effects on the offspring's health.
A study examining caffeine's association with breast cancer risk found that high caffeine intake may increase the risk of hormone-receptor negative and large breast tumors. The study also found a positive association between caffeine consumption and benign breast disease, but not overall breast cancer risk.
Energy drink manufacturers should label their products with prominent warnings about caffeine doses and potential health risks, says a study by Johns Hopkins Medicine. The high caffeine content of many energy drinks poses a risk to consumers, particularly young adults.
Women who don't drink coffee can experience a significant caffeine boost, improving mental alertness and heart rate, according to new research. The study found that consuming a large cup of coffee had more than enough caffeine to induce these changes.
A study published in the Journal of Applied Physiology found that athletes who ingested caffeine with carbohydrate after exhaustive exercise had 66% more glycogen in their muscles four hours later. This suggests that post-exercise caffeine consumption can aid in muscle refueling and potentially enhance athletic performance.
A new study found that mice immunized with an MS-like condition were protected from the disease when consuming six to eight cups of coffee daily. Caffeine stopped adenosine from binding to a receptor, preventing certain T cells from triggering the disease.
A new study reveals that reduced school-night sleep begins early in adolescence, even with delayed school start times. Family incomes below $40,000 were significantly associated with more delayed sleep patterns, while regular health care contact led to healthier sleep habits.
A daily dose of caffeine has been shown to protect the blood-brain barrier from damage caused by high cholesterol, a risk factor for Alzheimer's disease. Caffeine maintains tight junction protein expression, preventing unwanted molecule entry into the central nervous system.
Researchers tracked participants' glucose levels over 72 hours to find that consuming caffeine increased average daily sugar levels by 8%. Eliminating caffeine from the diet might be a good way to manage blood sugar levels for people with type 2 diabetes.
A new study found no association between current or past smoking and ovarian cancer risk. However, an inverse trend of risk was observed with total caffeine and caffeinated coffee intake, particularly in women who had never used oral contraceptives or postmenopausal hormones.
A Kaiser Permanente study found that high doses of caffeine daily during pregnancy increase the risk of miscarriage, particularly among women consuming coffee, tea, and hot chocolate. Women who consumed over 200mg of caffeine per day had twice the miscarriage risk compared to those with no caffeine intake.
A Brazilian study found that a 7 percent caffeine solution cream reduced thigh circumference by over 80% and hip measurements by nearly 68%. However, the effect on cellulite was less clear, with imaging showing little change. The researchers speculate that the trial may not have been long enough for the cream to act on cellulite.
Researchers found chemical traces of caffeine and theobromine in ancient pottery shards dating back to 1100 B.C., indicating that cacao was consumed as a fermented drink before being used for chocolate. The discovery offers new insights into the earliest consumption of cacao, challenging previous assumptions about its history.
Researchers found that caffeine reduced the rates of cerebral palsy and cognitive delay in preterm babies, with only 40% experiencing unfavorable outcomes by age two. The study involved over 2000 premature infants and showed significant long-term benefits of caffeine therapy.
A small study found that energy drink consumption increased systolic blood pressure by 7.9% within four hours and heart rate by 11% on the seventh day. The increases could be clinically significant in patients with heart disease or those who consume energy drinks frequently.
Researchers found that genes influencing risk for psychoactive drug abuse or dependence vary between illicit and licit substances, with caffeine addiction appearing to be genetically independent. Heritability estimates suggest that genetic factors account for over 70% of risk for cocaine, cannabis, and nicotine dependence.
A study found that college students who consume alcohol mixed with energy drinks are twice as likely to be hurt, require medical attention, or ride with an intoxicated driver compared to those who don't. The researchers also discovered that these students are more likely to take advantage of others sexually.
A preliminary laboratory study suggests that consuming large amounts of caffeine with acetaminophen can lead to toxic interactions and liver damage. The researchers recommend limiting caffeine intake while taking acetaminophen, particularly for vulnerable groups such as those taking certain medications or excessive alcohol.
A study published in Neurology found that women who drank more than three cups of coffee per day had less decline in memory over time. The benefits increased with age, with coffee drinkers being 30-70% less likely to experience memory decline.
A Rutgers study found that moderate caffeine intake combined with exercise can protect against UVB radiation-induced skin damage. Apoptosis rates increased by 95% in caffeine drinkers, 120% in exercisers, and nearly 400% in those who drank and exercised.
A large-scale study found that coffee consumption is associated with lower uric acid levels, which appears to be due to components other than caffeine. The researchers suggest that decreased insulin levels and improved insulin sensitivity may contribute to the observed effect.