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Excessive coffee consumption, generally above four to six cups per day, may increase the risk of side effects such as anxiety, restlessness, insomnia, and gastrointestinal discomfort, he explains.
Coffee sure has made the rounds regarding its health status. Many years ago, it was thought to be a noxious habit. More recently, however, evidence is mounting toward its beneficial effects on health.
Unfortunately, Dr. Wu says that regular caffeine consumption can cause you to build up a tolerance, meaning you may need to drink more over time to get the same effect, which can potentially ...
The health effects of coffee include various possible health benefits and health risks. [ 1 ] A 2017 umbrella review of meta-analyses found that drinking coffee is generally safe within usual levels of intake and is more likely to improve health outcomes than to cause harm at doses of 3 or 4 cups of coffee daily.
When consumed in moderation, caffeine can have many beneficial effects. However, over the course of several years, chronic caffeine consumption can produce various long-term health deficits in individuals. Among these, rodent studies have suggested caffeine intake may permanently alter the brain's excitability. [23]
Caffeine dependence can cause a host of physiological effects if caffeine consumption is not maintained. Withdrawal symptoms may include headaches, fatigue, difficulty concentrating, lack of motivation, mood swings, nausea, insomnia, dizziness, cardiac issues, hypertension, anxiety, backaches, and joint pain; these can range in severity from mild to severe. [18]
Now, to better understand the effects of coffee consumption on the gut microbiome, this research team analyzed diet and medical data from over 22,800 individuals in the United States and United ...
Even doses of caffeine relating to just one cup of coffee can increase sleep latency and decrease the quality of sleep especially in non-REM deep sleep. A dose of caffeine taken in the morning can have these effects the following night, so one of the main practices of sleep hygiene a person can do is to cease the consumption of caffeine. [14]