The effects of excessive consumption of Coffee

What exactly does coffee do to your body? Well all we know is that when we drink coffee in the morning it gives us more energy to be ready to start our day. The caffeine enters your bloodstream and quickly finds its way to your brain, where it works as a stimulant and boosts alertness and energy.

"The chemical enters your bloodstream fairly quickly,". It can take as few as 10 minutes from drinking for caffeine to start working. Caffeine binds to adenosine receptors in the brain. Adenosine is a nervous system depressant, meaning its presence suppresses arousal and promotes sleep. When caffeine intrudes and binds to the receptors, adenosine's effects are lessened, and we become stimulated. This increased brain activity then stimulates the release of adrenaline, which is what gives us that big burst of energy and attentiveness associated with a morning cup of coffee. Studies also have connected caffeine consumption to a boost in memory.

Drinking large amounts of coffee can cause a spike in blood pressure and heart rate.

Studies have suggested that coffee increases heart rate, thanks to caffeine's impact on hormones and neurotransmitters. But drinking coffee in moderation one to three cups per day shouldn't have a noticeable impact on a healthy adult. Some habitual drinkers may have a slightly higher blood pressure, while others develop a tolerance and are not affected in the long term. There isn't a clear explanation as to why caffeine causes this increase in blood pressure, but it's likely due to increased adrenaline and other hormonal responses brought on by the stimulant.

https://blog.mercy.com/effects-of-caffeine-on-your-heart/

You have a hard time sleeping

“Caffeine is a stimulant and therefore impedes sleep”. It stays in the body for a relatively long period of time, taking six hours for just one half of the caffeine to be eliminated. Too much caffeine may cause insomnia, which can manifest itself as trouble falling asleep or staying asleep. A “normal” amount of caffeine consumption is about 250 milligrams per day, or the equivalent of three eight-ounce cups of coffee. Consumption becomes excessive at 500 mg a day, or six or more eight-ounce cups of coffee. Excessive caffeine can cause frequent urination and multiple trips to the bathroom during the night.

https://www.caffeineinformer.com/caffeine-and-sleep

Excessive consumption of coffee can cause Anxiety

Caffeine is known to increase alertness. It works by blocking the effects of adenosine, a brain chemical that makes you feel tired. At the same time, it triggers the release of adrenaline, the “fight-or-flight” hormone associated with increased energy. However, at higher doses, these effects may become more pronounced, leading to anxiety and nervousness. In fact, caffeine induced anxiety disorder is one of four caffeine related syndromes listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM).

https://bebrainfit.com/caffeine-anxiety/