9. The brain itself isincapable of feeling pain. Once the skull is opened it is possible to operate on the brain with the patient awake.
10.You can’t feel your own tickle either. The brain is smart enough to neutralize the sensation. The cerebellum sends a signal to rest of the brain of your intentions and as a result the sensation is ignored.

5. Adult brain weighs about3 poundsor 1300 to 1400 Grams. This is about 2% of the body weight if you weigh 150 pounds or 70 kgs. Sperm whale’sbrain weighs 7800 gms.
6. Although the brain only accounts for 2 percent of our body weight but it consumes20% of the oxygenthat we breathe androughly 20 percent of our daily calories.
7.15-20% of all blood pumpedout ofthe heart goes directly to the brain.
8. All the thinking in the brain is aboutelectricity and chemicals. The brain is more active and thinks more at night than during the day.

4. Brain consists of60% White matterand 40% Grey matter. White is the supporting matter and Grey is the thinking matter of the brain. If the brain was a computer the grey matter would be the computer itself and the white matter its cables.

1. The human brain has about 100,000,000,000 or100 billion neurons. From the age of 35 years about 7000 neurons are lost daily.
2. During early pregnancy the neurons in the fetus canmultiply at arate 250,000 neurons/minute.
3. Brain is composed of75 to 80% water. Dehydration can affect proper functioning of brain.

The brain is a monstrous, beautiful mess. Its billions of nerve cells - called neurons - lie in a tangled web that displays cognitive powers far exceeding any of the silicon machines we have built to mimic it. - William F. Allman inApprentices of Wonder. Inside the Neural Network Revolution, 1989.
The brain is the most amazing and complex organ in this universe and its research continues to throw up new facts that surprise’s us. The brain is capable of being modified or improved even as we age. It is never used to its full capacity.

9.The National Programme for Control of Blindness, launched in 1976, aims to reduce the overall blindness prevalence rate from 14 blind persons per 1000 population to3.
10. The programme focuses on controlling avoidable blindness; providing high quality eye care to affected persons, especially rural poor; increasing the number of cataract operations and reduction in backlog by screening all population over 50 years

6.Cataract, the leading cause of visual disability, accounts for 62.6 percent of blindness in the country.
7. Other causes areglaucoma, macular degeneration, posterior segment pathology, retinal detachment, corneal opacities, retinitis pigmentosa,and surgical complications.
8. A largely undocumented cause for blindness in India isdiabetic retinopathy, especially in the working middleclass. The extent of the problem, which can be preventedwith goodglycemiccontrol, is yet to be estimated.