What coffee does to your body (video)

Who doesn't love a good coffee (or three)? But have you actually stopped to think about the effects drinking coffee has on your body?

Don't worry, there's plenty of positive effects from your daily caffeine dose, including reducing the risk of Alzheimer's. But, of course, there's also a downside in consuming too much caffeine, from anxiety to insomnia.

See also: Drinking more coffee 'could reduce multiple sclerosis risk'

Check out what your latte might be doing to the different parts of your body:

Brain
Coffee can make you start to feel more alert and able to concentrate. You may be able to think more clearly. Your pupils may dilate a little. Your vision might even sharpen.

Lungs
Caffeine in coffee helps your lungs to open up, making it easier to breathe.

Stomach
Caffeine causes your stomach to produce more acid. This aids digestion, but if you drink coffee on an empty stomach, the increased acid may irritate your stomach lining and cause pain.

Heart and circulatory system
Your blood pressure rises a bit shortly after you drink a cup of coffee. This makes your heart rate slow down, but if you keep drinking your heart rate may increase.

Moderate coffee drinking has been associated with lower rates of cardiovascular diseases.

A small study concluded that increased caffeine levels in the blood seems to have an effect of reducing the risk of Alzheimer's disease.

See also: Five best coffee machines to buy

However, too much caffeine can have negative effects on your body, including: anxiety, insomnia, increased blood sugar, increased blood pressure, acid reflux, and spinal bone loss in older women.

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