Caffeine News and Research

RSS
Caffeine is a bitter substance found in coffee, tea, soft drinks, chocolate, some nuts and certain medicines. It has many effects on the body's metabolism, including stimulating the central nervous system. This can make you more alert and give you a boost of energy.

For most people, the amount of caffeine in two to four cups of coffee a day is not harmful. However, too much caffeine can make you restless, anxious and irritable. It may also keep you from sleeping well and cause headaches, abnormal heart rhythms or other problems. If you stop using caffeine, you could get withdrawal symptoms.

Some people are more sensitive to the effects of caffeine than others. They should limit their use of caffeine. So should pregnant and nursing women. Certain drugs and supplements may interact with caffeine. If you have questions about whether caffeine is safe for you, talk with your health care provider.
Scientists explore connection between bad sleep habits and stiff blood vessels

Scientists explore connection between bad sleep habits and stiff blood vessels

Traces of caffeine and its byproducts in the blood can be indicative of Parkinson’s disease

Traces of caffeine and its byproducts in the blood can be indicative of Parkinson’s disease

One or more sugar-sweetened beverages per day linked to lower chance of getting pregnant

One or more sugar-sweetened beverages per day linked to lower chance of getting pregnant

Managing tobacco smoking leads to reductions in opioid use, study shows

Managing tobacco smoking leads to reductions in opioid use, study shows

Many Indians put away treating orthopedic problems

Many Indians put away treating orthopedic problems

Performance enhancing benefits of caffeine more apparent for infrequent tea, coffee drinkers

Performance enhancing benefits of caffeine more apparent for infrequent tea, coffee drinkers

Energy drinks dangerous for kids

Energy drinks dangerous for kids

Pitt scientists develop new guidelines to alleviate EMS personnel fatigue

Pitt scientists develop new guidelines to alleviate EMS personnel fatigue

Sugar cravings worsened by lack of sleep

Sugar cravings worsened by lack of sleep

Pharmaceutical pollution can make aquatic microbial communities resistant to drugs

Pharmaceutical pollution can make aquatic microbial communities resistant to drugs

Testing blood for caffeine levels may aid diagnosis of Parkinson's disease

Testing blood for caffeine levels may aid diagnosis of Parkinson's disease

Discovery of key protein’s structure may help improve drug design

Discovery of key protein’s structure may help improve drug design

A daily cup of hot tea may lower glaucoma risk

A daily cup of hot tea may lower glaucoma risk

Non-ionizing radiation from magnetic fields could have adverse biological impacts on health

Non-ionizing radiation from magnetic fields could have adverse biological impacts on health

Teachers call for ban on sale of energy drinks to under-16s in schools

Teachers call for ban on sale of energy drinks to under-16s in schools

TSRI chemists invent new method that simplifies late-stage modification of drug molecules

TSRI chemists invent new method that simplifies late-stage modification of drug molecules

Energy drink consumption linked to negative health consequences

Energy drink consumption linked to negative health consequences

Energy-drink consumption influences alcohol-induced body sway

Energy-drink consumption influences alcohol-induced body sway

Most teas contain safe amounts of fluoride, UF study finds

Most teas contain safe amounts of fluoride, UF study finds

Caffeine consumption may prolong lives of kidney disease patients

Caffeine consumption may prolong lives of kidney disease patients