Wednesday, March 25, 2015

learning disability

When learning is a problem

http://www.telegraphindia.com/1150323/jsp/knowhow/story_10205.jsp
Dr. Gita MathaiYour Health - Dr. Gita Mathai

In India, we place a premium on academic performance. A "good education", preferably in an English medium school, is a priority. Parents in many cities wait in serpentine queues for hours to get their tots admitted to the "best" nursery school.
In this scenario, when the child does not top the class, there is shame and consternation. The parents may adopt physical punishment, mega-vitamin therapy, a restricted diet, or alternative medicine (homeopathy, ayurveda) to treat their child.
Children find it difficult to perform academically if they have an IQ that is less than 70, or are vision or hearing impaired. Sometimes, they come from a background where academics is not stressed. The parents may be too busy or unable to guide or motivate the child. Comprehension may be a problem if the medium of education is different from the language spoken at home.
In 1.5-2 per cent of children, poor academic performance cannot be explained by any of these reasons. These children may have a normal IQ and no apparent physical defects and yet have learning disability. If this is not diagnosed and tackled, they grow up to have poor self esteem, may drop out of school, and, eventually, perform poorly in their careers.
Conventional education requires processing information gained by sight and hearing, integrating it in the brain with information already present, storing it away for future reference and using it again as and when required. A problem in any of these steps can cause difficulties with academic excellence.
Learning disability occurs when there is an impediment to the way the brain perceives and processes information. It covers a spectrum of disorders in reading (dyslexia), mathematics (dyscalculia) and writing (dysgraphia).
Sometimes, learning disability runs in families. An area of the brain responsible for any one of these acts may be defective and the problem may be inherited. The problem may occur due to a traumatic birth, with mild asphyxia, when the child did not cry immediately after birth. As the child grows, the problem may be due to poor nutrition (even in well-to-do families) or lead poisoning from the environment. Quite often, the reason for the disability cannot be ascertained.
The diagnosis is usually suspected when the child is in Class III. There is a disparity between the apparent intelligence of the child and performance in certain subjects. Simple tests like difficulty in identifying fingers, standing on one foot, right to left disorientation and difficulty in rapid alternating movements are markers for suspicion. The child then needs to be evaluated by a team with a paediatrician, a psychiatrist and neurologist.
Once the diagnosis has been made, arranging for a tutor to take over some of the workload helps. Parents may not have the time or the patience. It requires frequent and several repetitions. The study material often has to be broken into smaller components, which have to be repeated over and over.
Speech therapy may help with comprehension. Clumsiness can be tackled with occupational therapy.
Resources in India are limited. Specialised personnel are available only in a few cities. The schools too are rigid and have portions that have to be completed. They cannot cope with "slow learners". A differently-abled child may not be able to survive the stifling incomprehensible atmosphere.
If a child is unable to cope, open schooling is an option. Much of the studying can be done at home at the child's own pace. They need to attach themselves to schools accredited by the National Institute of Open Schooling (www.nios.org). Different subjects like painting or cooking can be taken in place of mathematics or geography.

Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her atyourh

Sunday, March 15, 2015

http://www.telegraphindia.com/1150309/jsp/knowhow/story_7506.jsp

Beat stress


Dr. Gita MathaiYour Health - Dr. Gita Mathai


Life in urban India is stressful. Something as simple as commuting means dealing with vehicles crawling along at a snail’s pace. Quite often drivers “loose it.” They honk, shout at each other and sometimes drive recklessly.
“Traffic stress” is a recent phenomenon. It can be uncontrollable anger with illogical actions, called the intermittent explosive disorder. It can manifest itself as a panic-stricken desire to get out of the traffic jam at whatever cost, even if it means going the wrong way and snarling up the traffic further. Both reactions can result in rapid heart rates and sweating.
Exposure to traffic pollution causes a build up of carbon monoxide in the body. This reduces the brain’s oxygen carrying capacity. The higher functions of the brain like logic and decision making are affected. Even personalities can change!
Even in areas without much air pollution, people face stress. By middle school, a child is under parental and peer pressure to perform well. Teenagers are under stress to conform. Adults have pressures of work, finance and family interactions. Life has never been less peaceful!
As soon as stress sets in, alarm bells go off in the hypothalamus area of the brain. It responds instantaneously with nerve and hormonal signals to other areas of the body. The levels of the stress chemicals adrenaline and cortisol escalate. The heart rate rises, sweating occurs and blood sugar levels climb, readying the body for defensive action.
This natural alarm system also communicates with regions of the brain that control mood, motivation and fear. This should be a temporary reaction, say when there is a sudden sound such as firecrackers. If the stress is chronic and there is sustained reaction from the emergency system, the elevated hormone and chemical levels have deleterious effects on the body.
There may be constant anxiety, depression, irritability, anger, insomnia, fatigue, vague chest pains, digestive problems and lack of motivation. Unconsciously, the body may attempt to counter these problems. Smoking or chewing tobacco, alcohol abuse or using “sleeping tablets” may appear to alleviate the stress temporarily. All these have addictive potential and long-term, harmful effects on health. They are not a solution.
The important thing is not to let stress take over your life. Having a conversation about stressors to relatives, friends and colleagues often helps. When problems are voiced out loud, they do not seem so bad.
Medication should be a last resort. Sleeping tablets and anti anxiolytics should be taken only with a prescription and under supervision. Medication should not be continued long-term.
Avoid confrontation and situations precipitating stress. If a relative or colleague constantly raises your blood pressure it is better to avoid them as far as possible.
Eat balanced meals on time. Overindulgence in snacks, fried or fat laden food or chocolates and ice cream is a recipe for disaster. There is an increase in the level of the “feel good” chemicals but the effect is short-lived. As the chemicals (endorphins) are metabolised, their levels fall below normal, causing a release of stress-producing chemicals and hormones.
Leave early for work. This way you might avoid the crowded public transportation system and traffic jams. You might arrive at work more relaxed. If long lines or slow service in restaurants and cafeterias are irritating, consider packing a light lunch and carrying it with you. Studies have shown that a 20-30 minute stroll during the lunch hour goes a long way to reducing workplace stress. (It also boosts energy and reduces drowsiness.)
Exercise religiously for 40 minutes every day, preferably in the open. Fresh air washes out the carbon dioxide from your body, so parks or other unpolluted areas are preferable to air-conditioned gyms.
Yoga is a great stress buster. The simple stretches will keep your body supple and fit. The meditation will calm your brain and help you face life head on.
Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her at yourhealthgm@yahoo.co.in

Wednesday, March 4, 2015

Flu guard

http://www.telegraphindia.com/1150302/jsp/knowhow/story_6392.jsp
Dr. Gita MathaiYour Health - Dr. Gita Mathai

Pandemics (diseases that do not recognise geographic or political boundaries) affect people all over the world. There have been pandemics of influenza (the most recent being the swine flu epidemic), measles and plague at various times in history. An epidemic, on the other hand, is said to occur when a large number of people in a given area are affected in a short space of time (two weeks). Common epidemics are colds, conjunctivitis and, the most lethal in recent times, the SARS (Severe Respiratory Distress Syndrome) outbreak. Endemic diseases like malaria simmer constantly in the population in Africa and India, with some people affected all the time.
There appears to be a swine flu epidemic in India at present. The virus is an unusually virulent, mutated form of the original H1N1 swine flu virus. It is believed to have combined with the bird flu (avian) virus and other human influenza strains.
The flu season starts around October. It lasts till March. Immunisation is available against flu. It is safe. It can be given after the age of six months to children, adults, pregnant women and senior citizens. Immunity levels rise after two weeks and lasts six to eight months. This means re-vaccination has to be done every year in October. Even if you do get the disease after immunisation, it is likely to be mild and not fatal.
We should also follow basic hygiene techniques like coughing or sneezing only into a handkerchief, or into the crook of the elbow, and washing hands frequently. A face mask is more likely to prevent you from infecting others and not vice versa.
Infectious diseases, both bacterial and viral, can be prevented by timely immunisation. At birth, BCG is given. Even though it does not protect against all tuberculosis it does shield against the more lethal forms like tuberculosis meningitis.
The triple antigen DPT (diphtheria-pertussis-tetanus) vaccine can be combined with OPV (oral polio vaccine) or IPV (injectable polio vaccine), Hib (H. Influenzae, not flu), Hepatitis B, and pneumococcal vaccine. It is given three times in the first year and then boosters (DPT/OPV/IPV alone) are given at the age of one and a half years and five years. Further boosters against diphtheria and tetanus (dT or dual antigen) have to be given at the age of 10 and 16 years.
Rotavirus causes dangerous child diarrhoea. Immunisation can be given after the age of two months.
A measles shot is first given at the age of 10 months. The immunity rapidly wanes. It is combined with mumps and rubella vaccines as MMR. The first dose of MMR is given at 15 months and a booster at 4-5 years. The chicken pox vaccine should be given at 13-15 months of age. A booster can be given at 4-5 years of age.
The hepatitis A vaccine, given as two doses six months apart after the age of 18 months, provides lifetime immunity. After the age of nine children (especially girls) should be immunised against HPV (human papillovirus), responsible for cervical cancer.
Much of the spread of swine flu could have been prevented if Indians had immunised themselves in October 2014. Don't forget to do so in 2015.
Dr Gita Mathai is a paediatrician with a family practice at Vellore. Questions on health issues may be emailed to her atyourhealthgm@yahoo.co.in