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.

4. Despite this lofty aim, India’s blind population totals a whopping 12 million.
5. More than two thirds of India’s visually handicapped live in Andhra Pradesh, Orissa, Madhya Pradesh, Maharashtra, Rajasthan, Tamil Nadu and Uttar Pradesh.
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.

1. Globally, every five seconds, a person goesblind.
2. Nine out of every ten blind personslive in developing economies.
3. According to the National Health Policy document of the Government of India, 1983, “One of the basic human rights is the right to see”.
4. Despite this lofty aim, India’s blind population totals a whopping 12 million.

Women who use injectable form ofbirth control may have a complete disruption of normal menstrual cycle and can develop irregular bleeding that may lead to the absence of menstruation.
Rate of pregnancy after having avasectomy reversedranges from 30% to - 60% and the rate after having a tubal ligation reversed is about 40% - 80%. Uccess depends on many associated factors – a successful reversal does not gaurentee success with pregnancy

The most effective type ofperiodic abstinence birth controlis by checking the basal body temperature. The body temperature goes upo during ovulation – howeverit requires the use of a special thermometer.
Nonoxynol 9 is the active ingredient in spermicides. This chemical kills the sperms on contact. Pregnancy which results from failure of spermicides is not associated with an increased risk of fetal malformations.

It isnot advisable to use female and male condoms togethersince there is a fear of tearing the condoms.
People having alatex allergy can use condoms made of polyurethane or natural membrane.
Theprogestin patchis less effective in women weighing more than 198 pounds (kg).

Women who takeoral contraceptive pills are advised not tosmoke.Smoking increases the risk ofcardiovascular side effects, especially over the age of 35.
The pill is not a cancer causing butreduces the risk of ovarian and uterine cancer.
The risk of Pelvic inflammatory disease (PID) among Intra- Uterine Devices (IUD) like coper T users is increased for the first 3 weeks after the insertion of IUD.
An IUD does not interfere with tampon. When properly inserted, it does not get dislodged during sex or cause any pain, and nor can the partner feel it.

Oral contraceptive pills remain the most popular type of birth control.They are 92-99.7% effective.But remember that they do not protect against sexually transmitted diseases (STD’s) and HIV.
There may be a slight delay to return back to fertility and pregnancy after stopping the oral contraceptive pill.
Estrogen in the birth control pills increases the risk of blood clots.Other effects produced by estrogen are nausea, fluid retention, breast tenderness, mood swings, and chloasma. Progestin in the pill may cause weight gain, nervousness, depression, tiredness and acne.

In United States, about40% women use permanent sterilization, 27% use oral contraceptive, 20% women use condoms, 3% use progestin injections and less than 1%women use intra-uterine devices (IUD’s).
Contraception failure rates rangefrom 5-27% for Rhythm and Withdrawal methods, 0.1-3% for oralcontraceptives and IUD’s, 1% for injection (Depo) and implants (Norplant).
Oral contraceptive pills remain the most popular type of birth control.They are 92-99.7% effective.But remember that they do not protect against sexually transmitted diseases (STD’s) and HIV.

5.At the moment of conception, you spent about half an hour as a single cell.
6.In a lifetime, the average person produces about 25,000 quarts of saliva, enough to fill two swimmingpools.
7.There are about 60,000 miles of blood vessels in the human body.
8.Heart pumps about 2,000 gallons of blood through those vessels every day.
9.Men without hair on their chests aremore likely to get cirrhosis of the liver than men with hair.

3.Your body gives off enough heat in 30 minutes to bring half a gallonof water to a boil.
4.Blondes have more hair. The average human head has 100,000 hair follicles, eachof which is capable of producing 20 individual hairs during a person’s lifetime. Blondes average 146,000 follicles. People with black hair tend to have about 110,000 follicles, those with brown hair have 100,000 follicles. Redheads have the least dense hair, averaging about 86,000 follicles.

1.When you are looking at someone you love, your pupils dilate, and they do the same when you are looking at someone you hate.
2.The human head is one-quarter of our total length atbirth but only one-eighth of our total length by the time we reachadulthood.

1. Snacking is important. By eating small meals or snacks throughout the day, you will keep your metabolism up and running to burn the calories you eat. Smart snacking means cutting out the vending machine chips and candy bars and adding in the granola, bagged fruits or veggies, protein bars, or nuts.
2. Depending upon the amount of physical activity you do, you can calculate how many calories per day are healthy for your weight and lifestyle. For teens, the average recommended caloric intake is 2,100 calories, but it is important to base your diet on your activity.

1. Physical activity like aerobic exercise (walking, running), muscle-strengthening (weight-lifting), bone-strengthening (jumping rope), and balance and stretching activities (yoga, pilates, dancing) are especially beneficial to a healthy body.
2. The more fresh foods you consume, the healthier you will be. Foods that do not expire contain unnatural preservatives, additives, and chemicals that deteriorate your body. Focus on fruits, vegetables, lean meats, whole grains, low-fat dairies, and above all, moderation in whatever you eat.

1. In the same survey, more than 15 percent of the students were overweight, and more than 12 percent admitted to starving themselves for 24 hours or more in the last month in an attempt to lose weight.
2. Rest is a very important aspect of living a healthy lifestyle. Teenagers need 9 or more hours of sleep per night for their bodies to function properly. Less than a third of high school students in 2011 reported getting 8 or more hours of sleep per night.
   • Sleeping the right amount can prevent sickness, obesity, high blood pressure, and injury.

1. More than one-third of adults and over 12.5 million children and teens in the US are obese. In the last 30 years, obesity in children and teens has nearly tripled.
2. One can of soda contains 10 teaspoons of sugar and the average American adult drinks 500 cans of soda every year, estimating about 52 pounds of sugar consumed in soft drinks alone.
3. An unhealthy diet leads to diseases like diabetes, hypertension, certain cancers, obesity, and micronutrient deficiencies.
4. In a survey of 9th through 12th graders in 2011, 13.1 percent of the teens admitted to skipping breakfast in the past 7 days, while 11.3 percent had drunk 3+ servings of soda per day in the same time frame.
5. Breakfast is the most important meal of the day because it feeds your body and mind with the necessary nutrients and energy to function throughout the day. Eating breakfast regularly will also help keep weight off because it gets your metabolism going.