Facts about human brain 1. People have three forms of memory: touch, long-term and short-term. Long-term works similarly to a hard disk of a computer, and short-term is works as very small memory. 2. The human brain can hold out 5 seconds without oxygen. 3. The odinary person can keep in memory seven objects . However it is possible to train the person to remember more than nine subjects. 4. Regulary brain work can prevent different diseases.It is proved that regulary work of a brain prevents development of Alzheimer's disease. 5. The human brain weighs 1 kg. 6. It is necessary to drink about 2 litres of the liquid every day for proper brain work .The brain, as well as all our organism, consists on 75 % of water.You have to drink necessary quantity of water to hold your organism in a healthy condition. 7. It is easier for brain to understand men's speech than women's.Man's and female voices act on different sites of a brain. Female voices more musical and they sound on higher frequencies. 8. To play chess is more easier than examine a photo. Because identification of visual objects is very complicated for person. 9. Yawing helps a brain to wake up. 10. The human brain is used less energy, than a bulb in a fridge.