Effects of Caffeine
Caffeine is a central nervous system stimulant drug, which is derived from leaves,nuts and seeds. Caffeine is added in soft drinks,energy drinks,Weight loss supplements and naturally found in coffee,tea and cocoa. The most common intake of caffeine is in the form of coffee and tea. Caffeine taken within safe limits,proved to lower the risk of cancer,Diabetes,Stroke,Depression,Alzheimer’s Disease. Caffeine boost energy levels,enhances memory,reduces fatigue and so,it is not surprising that coffee makes people thrive throughout the day.
The recommended safe limits to consume is no more than 400 mg of caffeine per day which is about 4 cups of coffee. Above this recommendation in long-term pose risk to health. Amount of caffeine varies,depending on the type of beverage and quantity. For example,instant coffee contains around 60-100mg of caffeine. The immediate effect of caffeine makes the person alert and awake. One may experience short term effect within 5-30 minutes after consumption and will last up to 6-12 hours.
Caffeine intake in pregnant woman and children should be monitored. It is advisable to limit to 200 mg per day or less for pregnant women,and is even better,if caffeine intake is avoided during pregnancy. Excessive caffeine intake in pregnant woman may lead to miscarriage. The higher consumption of caffeine in the form of soft and energy drinks in adolescents is a growing concern and shown to increase anxiety levels. There are no guidelines of safe limits for children,hence it is advisable for the parent to monitor the intake of drinks that contain caffeine.
Long Term Effects
Increased caffeine intake on regular basis will have negative effects of health,which can result in anxiety,irritability,insomnia,gastric disturbances,palpitations,nervousness,depression,heart burn,frequent urination and dehydration. Every individual reacts differently to caffeine,depending upon their body weight and health.
Eventually one may become caffeine dependent or caffeine addict if the consumption is above safe limits on regular basis. The body will get use to effects of caffeine,and the person may get addicted to caffeine either physically or psychologically.
The person on higher caffeine consumption regularly may experience withdrawal symptoms like dizziness,headache,nausea,irritability if caffeine consumption is abruptly stopped. The withdrawal symptoms may appear within 12-24 hours after discontinuation,peak at 48 hours and will last from 2 to 9 days. It is advisable to reduce caffeine dosage gradually by decreasing one drink or limiting the quantity per day to come out of caffeine addiction.