1 Considerable research has demonstrated that heart rate increases depending on various emotions.

2 Scientists established that the heart pumps some ten tons of blood every day.

3 The bloodstream in the lungs increases when we inhale and decreases when we exhale

4 Much research has shown that for people sleep is more important than food.  

5 The heart of an adult human beats at a rate of 80-70 beats per minute

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5. Heart of grown man can making 60 - 72 beating in the minute

4. Many researches show to you, what sleep more important for human, than food.

3. The burst of blood increase when we ihale, and decrease when we exhale.

2. Scientists learned, what overall mass of blood, can reach around of 10 tons.

1. Exploring work of many scientists, what frequency of heartrate increase of depending emotions