Over the years, there has been an extensive health debate over whether coffee is really good or bad for our bodies, with strong arguments and research coming from both sides of the fence. Some research suggests that coffee can prevent strokes, delay the onset of diabetes and heart disease. Other findings indicate it might lead to some forms of cancer and adversely affect the metabolism.
The most recent studyfrom the Mayo Clinic published on August 15 reveals that drinking more than 28 cups a week can harm your health considerably, with those consuming more than four cups a day twice as likely to die than those who are non-drinkers.
Based on data collected from the Aerobic Center Longitudinal Study, the research measured the coffee consumption habits and lifestyles of almost 45,000 people ages between 20 and 87 years over a 17-year period.
The study specifically found that men aged 55 years or younger who consumed more than 28 cups of coffee a week were 56 percent more likely to have died from any cause than those who were non-drinkers, and younger women doubled their risk of mortality with consumption.
However, there is no need to ring the alarm bells just yet. The study did not find any significant link between coffee consumption and heart disease deaths and there were no increased mortality risks associated with less than three cups a day as co-author Carl J. Lavie, a cardiology researcher at the Ochsner Medical Center in New Orleans explained. “There continues to be considerable debate about the health effects of caffeine, and coffee specifically, with some reports suggesting toxicity and some even suggesting beneficial effects,” he said.
The latest research conflicts with the findings of a number of previous studies on the health effects of coffee, such as a 2012 study by the National Institutes of Health which found that older adults who drank more coffee had a lower risk of death overall. It’s safe to say there are positive and negative qualities about drinking coffee but of course in moderation. Here are the signs that you might be affected by too much caffeine and you might need to cut back or be prick to everyone in your workplace.
IT CAN MAKE YOU HEAR THINGS.
According to a study by the University of Melborune, coffee is “the most commonly used psychoactive drug,” and drinking more than 5 cups a day can have you hearing things.
Researchers gave 92 subjects large amounts of coffee and then had them listen to white noise.
From The Daily Mail:
Professor Simon Crowe, of La Trobe University in Melbourne, said: “We also told them that within the white noise there may be parts of the song White Christmas and if you hear it, press a button. We didn’t include White Christmas in the white noise but found that more people who were very stressed and had high levels of caffeine thought they heard the song. The combination of caffeine and stress affect the likelihood of an individual experiencing a psychosis-like symptom.”
IT CAN DAMAGE YOUR LIVER.
According to studies by the National Institute of Diabetes and Digestive and Kidney Diseases, while moderate amounts of coffee can help the liver to detoxify the body, too much can have to opposite effect and hinder your liver’s function. This is especially true if you’re taking high doses of common over-the-counter pain medication.
IT CAN RAISE YOUR BLOOD PRESSURE.
That’s according to a Carnegie Mellon study which also says that coffee can stimulate the heart and cause shallow breathing.
IT CAN MAKE YOU IRRATIONAL AND IRRITABLE.
The shallow breathing caused by too much caffeine can stymie oxygen’s flow to the brain, which in turn harms the decision making process.
IT CAN CAUSE INSOMNIA.
This varies from person to person, depending on how well your body can process caffeine. Coffee has a 6 hour half life so it takes 24 hours to work its way through your system (on average).
That means coffee right before bed (like when you’ve been pulling an all-nighter) is no way to get good quality sleep. Studies show that it reduces valuable REM sleep time.
According to research done by Johns Hopkins University, caffeine only gives you that focused energy because it gets you over caffeine withdrawals in the first place.
John Hopkins researchers found that caffeine-related performance improvement is nonexistent without caffeine withdrawal. In essence, coming off caffeine reduces your cognitive performance and has a negative impact on your mood. The only way to get back to normal is to drink caffeine, and when you do drink it, you feel like it’s taking you to new heights. In reality, the caffeine is just taking your performance back to normal for a short period.
IT CAN MAKE HARD WORKERS SLACK OFF.
The University of British Columbia did a study in which it gave 40 rats amphetamines and caffeine. The amphetamines made lazy rats work harder and hard working rats more lazy.
The coffee, on the other hand, did nothing for the slackers. It didn’t do anything for the workers either.
IT CAN INCREASE YOUR RISK FOR OSTEOPOROSIS.
This is according to research by the Oregon State University. To combat this, make sure you’re getting enough vitamin D and calcium when you’re drinking coffee.
WITHDRAWAL CAN GIVE YOU A HEADACHE.
Withdrawal is about 12-24 hours after your last cup, according to the American Heart Association.
WITHDRAWAL CAN ALSO MAKE YOU DEPRESSED.
You can add anxiety, fatigue and drowsiness to those symptoms.