Caffeine News and Research

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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.
Substances in coffee could help quash risk of developing diabetes

Substances in coffee could help quash risk of developing diabetes

Testing Service Members for Heat Related Illnesses Before Combat

Testing Service Members for Heat Related Illnesses Before Combat

Tips for packing nutritious, delicious, and affordable lunch

Tips for packing nutritious, delicious, and affordable lunch

NASA’s Twins Study researchers explore the ground truth behind metabolites

NASA’s Twins Study researchers explore the ground truth behind metabolites

New vaccine could offer protection against opioid combinations

New vaccine could offer protection against opioid combinations

Adequate sleep and caffeine could help reduce postoperative pain

Adequate sleep and caffeine could help reduce postoperative pain

Poor sleep in children linked to development of diabetes later in life

Poor sleep in children linked to development of diabetes later in life

Energy drinks among youth paving way for cocaine addictions later finds new study

Energy drinks among youth paving way for cocaine addictions later finds new study

Medical experts at UT Physicians provide tips for healthy start to new school year

Medical experts at UT Physicians provide tips for healthy start to new school year

First of its kind 45-day HERA mission incorporates sleep reduction for research purposes

First of its kind 45-day HERA mission incorporates sleep reduction for research purposes

Preemies treated with caffeine have better lung function in mid-childhood, study finds

Preemies treated with caffeine have better lung function in mid-childhood, study finds

Study reveals link between coffee and low mortality

Study reveals link between coffee and low mortality

Cocoa and chocolate consumption could provide beneficial effects on cognitive function

Cocoa and chocolate consumption could provide beneficial effects on cognitive function

Identifying overactive bladder syndrome

Identifying overactive bladder syndrome

Study shows septic systems as important sources of emerging contaminants in drinking water

Study shows septic systems as important sources of emerging contaminants in drinking water

New approaches to early detection of Parkinson's disease on the horizon

New approaches to early detection of Parkinson's disease on the horizon

Researchers examine antioxidant, anti-inflammatory properties of coffee beans at different roasting levels

Researchers examine antioxidant, anti-inflammatory properties of coffee beans at different roasting levels

Drinking few cups of coffee or tea may protect against liver fibrosis, study finds

Drinking few cups of coffee or tea may protect against liver fibrosis, study finds

Officers who work afternoon shifts more likely to be tired, study finds

Officers who work afternoon shifts more likely to be tired, study finds

Bed partners may unintentionally contradict treatment recommendations for insomnia patients

Bed partners may unintentionally contradict treatment recommendations for insomnia patients