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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]
8. Coffee may help with mental health “One study showed that regular coffee drinkers were less likely to have depressive symptoms,” shares Glassman. While more research needs to be done, the ...
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.
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.
"Moderate coffee drinking has been related to health benefits," lead study author Lu Qi, M.D., PhD, interim chair of the Department of Epidemiology at Tulane University, told Fox News Digital.
Cardiovascular effects can range from increased heart rate and reactivity to severe cardiac arrhythmia. [10] The cognitive effects of caffeine include increased performance in memory, attention, and text reading. [11] The physical effects of caffeine include lowered sensations of pain, less perceived effort, and increased muscle strength and ...
Here's what immunologists say.
The daily dose of 2.5 mg/kg body weight would not cause adverse health effects in the majority of adolescent caffeine consumers. This is a conservative suggestion since older and heavier-weight adolescents may be able to consume adult doses of caffeine without experiencing adverse effects.