Caffeine was causing changes in levels of female sex hormone, estrogen. Although in the short term effect is unknown, but excessive caffeine consumption should be limited in the long run.
Estrogen together with progesterone produced in the ovaries in the reproductive period. In addition to helping to control ovulation, estrogen to maintain bone strength and regulate cholesterol. Together with progesterone, the hormone needed to prepare the body of a woman facing a pregnancy.
Consuming 200 milligrams of caffeine or more than one cup of soda and other caffeinated beverages will cause an increase in estrogen levels. The impact of this increase in estrogen levels was different between women with a female Asian Caucasian (white).
More than 250 women aged 18-44 years were included in the study carried out between the years 2005-2007. In general they mengasup 90 milligrams of caffeine per day, equivalent to a cup of coffee.
Those who consume caffeine 200 mg or more daily is known to increase estrogen. However the increase is not considered significant because it has not effect on the process of ovulation or the menstrual cycle.
Caffeine taken by the women came from coffee, soft drinks, black tea and green tea.
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“These studies suggest caffeine consumption in women of childbearing age affects their estrogen levels. In the short term impact may not be visible, but if the habit of drinking caffeine this longstanding matter of course,” said Enrique Schisterman, lead researcher.
He explained, in the long term changes in estrogen levels can lead to various disorders such as endometriosis, osteoporosis, endometrial, and ovarian and breast cancer.
Consumption of caffeine in normal amounts is beneficial because it can prevent drowsiness, increase sensory perception, speed of mind, and to reduce boredom. Although coffee can indeed prevent drowsiness, eat to excess is not good. Too much caffeine can negatively affect mood, energy, and even your health.
“Some research even linked high doses of coffee with infertility, and increased risk of hip fractures in older women,” said Keri Gans M, MS, RD, CDN, author of The Small Change Diet. You normally consume caffeine in large quantities and then suddenly stop it will be easy to anger, fatigue, headaches and even depression.
Therefore, the American Dietetic Association recommends eating no more than 300 mg of caffeine a day. The amount is equal to about two or three cups of coffee the size of 236 ml (or one standard glass). Although you are not a coffee drinker, you can also get caffeine from sources that are not detected. Then how can you know that caffeine consumption have included excessive?
1. Sleepy during the day when not drinking coffee
Every day you have to rely on coffee to survive till evening without drowsiness. In some people, caffeine may be required in other forms, such as cola drinks. According to David J. Clayton, MD, author of The Healthy Guide to Unhealthy Living, levels of caffeine in a can of cola drinks can be just as much as a cup of espresso. Besides being able to trigger a decrease in energy, acid content in soft drinks can damage tooth enamel if taken every day. Limit up to a can of soda a day, then brush your teeth to help reduce the effects of erosion on dental enamel.
2. Orange-colored urine
Dark yellow or orange color in urine is a sign of dehydration. “Coffee is a diuretic that can cause dehydration due to an increase in the amount of urine, causing you to lose lots of body fluids,” said Amy Gross, MPH, RD, CDN, clinical dietitian at New York Presbyterian Hospital. But, in fact you will not get dehydrated just by consume caffeine. Only when the number reached 500 mg, you will be exposed to dehydration.
3. You can not sleep
“Caffeine takes about 45 minutes to an hour to be absorbed and last a long time. That is, he could remain in the body for several hours and ultimately affect your sleep cycle,” says Molly Morgan, RD, owner of Creative Nutrition Solutions in Vestal, New York, and author of The Skinny Rules.
If you take longer than 30 minutes to fall asleep at night, try to avoid caffeine after 12.00 to see if it makes you fall asleep easier. If true, also avoid other caffeine sources, including green tea and decaf coffee. Decaf coffee still save about one third the amount of caffeine, you know!
4. You feel restless
Effect of caffeine in some people it is different. There are sweaty palms, heart palpitations, insomnia, and restlessness. Caffeine can worsen stress and depression due to disrupt chemical in the brain called adenosine. In addition, caffeine also acts as a stimulant that triggers the adrenal gland to release more stress hormones like adrenaline which can increase heart rate and makes you more nervous.
5. Feeling hot and heartburn
You know when it’s stomach contents back up into the esophagus? This occurs when the muscles at the end of the esophagus allowing food and stomach acid rises so that there is a burning sensation below the chest. If this happens to you, chances are the cause is excess caffeine. Caffeine release the muscles at the end of the esophagus is made up of stomach acid. Try to refrain from drinking coffee first to see if the discomfort to subside.