Some symptoms of caffeine withdrawal include headaches, irritability, nervousness, nausea, constipation, and muscular tension. People who stop drinking caffeinated drinks may notice several side effects, especially if they are used to consuming large amounts of caffeine. Can caffeine help a person 'sober up'?Ĭontrary to popular belief, drinking coffee will not help someone who is intoxicated become sober. There is some evidence to support the use of caffeine to enhance athletic performance, but it is highly individual. Does caffeine improve athletic performance? People who take medications for depression, anxiety or insomnia, high blood pressure, other heart problems, chronic stomach upset or kidney disease should limit caffeine until discussing the matter with a clinician. While consuming moderate amounts of caffeine does not seem to have long-term detrimental effects, consuming large amounts of caffeine (1000 mg or about ten 8-oz cups of coffee a day) on a regular basis may be linked to fertility issues, increased episodes of heartburn, and changes in bowel habits. If you want to avoid some of the unintended side effects of caffeinated beverages (e.g., jitters or sleeplessness), switching to decaffeinated drinks may help. Too much caffeine may also lead to anxiety-related feelings such as excessive nervousness, sweating, and tremors. When normal sleeping patterns are continually disrupted, mood depression may occur. Caffeine does not replenish energy or prevent emotional fatigue food and sleep are the only remedies for these. Too much caffeine may lead to sleep deprivation and a tendency to disregard the normal warning signals that the body is tired and needs rest. People may experience dizziness, hypoglycemia, fruit-like breath odor, troubled breathing, muscle tremors, nausea, diarrhea, increased urine, ketones in urine, drowsiness, thirst, anxiety, confusion, irritability, insomnia, changes in appetite, dry mouth, blurred vision, jitters and cold sweats. What are the negative side effects?Ĭaffeine may increase blood pressure, body temperature, blood flow to the skin & extremities, blood sugar levels, stomach acid secretion and production of urine (it acts as a diuretic). Caffeine-containing products such as coffee, teas, and chocolate are rich sources of antioxidants and phytonutrients which may have health-promoting effects. What are the health benefits of caffeine?Ĭaffeine may reduce the risk of developing certain neurological disorders such as Parkinson's and dementia as well as certain oral cancers. Most individuals consuming moderate amounts will experience few, if any, negative side effects. However, when consumed in moderate doses (up to 400 mg per day, or four to five 8-oz cups of coffee), caffeine can help some people feel more alert and less sleepy. Is caffeine safe?Ĭaffeine is recognized as an addictive substance by the World Health Organization (WHO). The effects of caffeine on the body may begin as early as 15 minutes after ingesting and last up to six hours. Why do some people use caffeine?Ĭaffeine acts as a stimulant by exerting an effect on the central nervous system. Caffeine is also found in some prescription and non-prescription drugs, including cold and allergy medications and pain relievers.
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