What does caffeine really do to body?

This one is a tough cookie, every year it seems to change. Is it bad for your heart, is it good? A large study of 25,000 adults from South Korea has found that people who drink between three and five cups of coffee per day were less likely to have the first signs of coronary heart disease.
The medical leader of this experiment said ” Guallar said that this study cannot show a direct cause-and-effect relationship between coffee and reduced calcium in the arteries, but noted that the association between these factors is very strong.”

Circulatory and Respiratory Systems (that’s your blood stream and breathing)
Caffeine reaches its most intense levels in your bloodstream within an hour or two,
it can make your blood pressure go up for a short time. In most people, there is no long-term effect on blood pressure.

How does caffeine affect endurance?

When you exercise, your body uses glycogen (sugar),but after it has all gone from your body after those long workouts, your body can feel tired, or ‘hollow’ as I always feel after my workouts. Caffeine slows down the sugar breaking system that happens in the body and convinces the body to use fat stores as fuel. 

For this reason, sports that deplete a lot of this sugar, such as cardio and HIIT workouts, really benefit from caffeine consumption.Conversely, caffeine provides no tangible benefits for strength and power activities, such as weight-lifting.

So, yes! Caffeine does have a performance-enhancing effect for some athletes,but.. be careful how you use it! The effects of caffeine can vary for individuals.

How does caffeine affect hydration?

We’ve all heard the warning that caffeine has a diuretic effect and dehydrates you. However, research shows that this widely-held assumption is actually not true unless you consume a large amount of caffeine, like huge amounts, 6-8 cups a day! I like my coffee but i’m not that thirsty!
Anything less then that, the water you take on through the coffee its self is enough to replenish the fluids lost. 
How does it affect digestion?
Well, it’s noted, frequently… that coffee is a diuretic and as such too much can cause dreadful stomach cramps. Been there, done that. They’re not nice!
Essentially the body’s metabolism goes into over drive and starts digesting what ever is in the stomach, so if you’ve had too much and not enough food and water then the stomach just starts cramping in on itself. It normally goes with diarrhea and nausea.

Not getting those all important Zzz’s?
For some people, caffeine can have a Huge effect on sleep, even if they consume it many hours before laying down in the hay. It varys for each person but in a nut shell it’s advised that if you have a problem with sleeping cutting down and avoiding caffeine is one way to help you sleep.

There’s a great body map that can give you an overall guideline of what it does to your certain types of your body.
Samantha Heller is a senior clinical nutritionist at NYU Langone Medical Center in New York City. “If you do not drink coffee, there is no reason to start drinking it,” she said. “If you do, the sweet spot seems to be in the three- to five-cup range — these are 8-ounce cups, not the 32-ounce jugs of coffee we are used to seeing,” Heller said.

And what you put in the coffee makes a difference.. Whipped cream, syrups, coffee creamers with partially hydrogenated oils, cream, artificial sweeteners or too much sugar can knock the health benefits of coffee out of the window.

So enjoy your joe, but cut back on the naughty bits!

 

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*Alot of content has been collected from gov.uk and medical websites to create the most up-to date information for you, whilst I have tried my best to create orgional content, some (for reasearch purposes) has been taken from sites.

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