India faces the unique challenge of dealing with both obesity and malnutrition

One Indian in every five is obese, according to a 2013 study in the renowned journal The Lancet. Most of these people live in cities, where rapidly changing lifestyle is contributing to an “obesity epidemic”.

An obese person, as defined by the World Health Organisation, is anyone with a body-mass index (BMI) that is greater than 30. BMI is a person’s weight in kilograms divided by the square of his or her height in metres. Although this measure is not perfect – for instance it sometimes fails when used on sportspersons – it is a good approximation to warn most people of the potential dangers.

When two worlds meet

Obesity, like smoking, kills slowly. It increases the risk of being affected by type-2 diabetes, coronary heart diseases, breast cancer, bowel cancer and even stroke.

And India faces a further, unique challenge. While obesity is a growing problem, the country is yet to deal with malnutrition and undernourishment. In fact, the 2014 Global Nutrition Report found that most developing countries are facing all three problems at the same time. The number of obese around the world has increased to 210 crores and the number undernourished and malnutrition remains at 200 crores.

The lack of nourishment leads to stunted growth, affecting bodily strength and mental prowess. Their poor immune system makes them easy victims to infectious disease such as diarrhoea, which is a leading cause of death among those under the age of 5.

The combined economic burden of obesity, undernourishment and malnutrition is probably greater than 5% of the gross domestic product (about ₹ 6 lakh crores). And any problem at this scale can only be tackled when both government and citizens rise up to the challenge.

A bag of tricks

Good proportion of the blame lies in people’s choices. Exercise and diet, especially done together, are effective to deal with obesity. Everybody knows that, but few people manage to get off their couch and leave high-calorie snacks unopened. Simple psychology hacks, such as making your goals public or setting them with your partner, can work. Group exercises or community centres can also help deal with the urban population’s addiction to a sedentary lifestyle.

Governments can help too, but they don’t have a single magic trick. Instead they need to rely on implementing many policies, each of which has been shown to have a small positive effect. These include healthier school meals, taxing high-calorie food and drink, and better physical training. For each rupee spent on implementing these obesity controls, the government is bound to receive many times back in economic benefits.

The poor don’t fair better on their own either. For instance, when they earn some spare cash, villagers choose to buy a TV or a mobile phone – a status symbol – rather than feed their young better food. Worse still, malnutrition trains the body to hoard fat, so when the poor eat calorie-rich food they become more prone to obesity as adults. Bad choices can become good ones through grassroots movements.

To be sure, malnutrition is not just the lack of food. India has enough to feed all its population, if it fixes its distribution network. It is more a problem because of lack of proper food.

Some governments can show others the way. In Maharashtra, for instance, stunting in children under 5 fell from 37% in 2006 to 24% in 2012. Factors that helped: economic growth, poverty reduction, nutrition programmes and better female education rates. The latter is interesting because uneducated women tend to give birth at very young ages, their babies tend to be underweight and fail to thrive. Simple education programs can also make them aware of the family’s nutritional needs, helping them make better choices. Women empowerment may be an empty political promise, but it can truly work.

First published in Lokmat Times. Image by filandfiloi under CC-BY-NC-ND license.

Asteroids are fascinating – not just because they can destroy humanity

Look up in the night sky, if you are lucky you might be able to see Vesta, the only asteroid—among millions that lurk between Mars and Jupiter—bright enough to be visible to the naked eye from the Earth. Given their dull (non)appearance in the sky, it is no wonder that the first asteroid was only discovered in 1801 when relatively powerful telescopes started to be built.

However, in the two centuries since, we have learnt a lot about these celestial bodies. They could prove to be both a curse and a blessing. A curse because they could bring about the end of human existence, and a blessing because they could be the launchpad for building human colonies in outer space.

The definition of an asteroid has changed over the years, but today we know them as small bodies found in the inner solar system. Asteroids can also be called failed planetesimals—tiny fragments that had the potential to grow larger under the influence of gravity and become a planet when the solar system was being formed billions of years ago, but couldn’t.

Living on a pale blue dot

We now know that these “failures” pose a high risk to life on the Earth. Only last week a half-kilometre wide asteroid passed by the Earth. If it had hit us, it could have caused human extinction. Fortunately it was about 1 million km away, which is three times the distance between the Earth and the moon. But the risk is real. In the past one such asteroid impact was responsible for extinction of dinosaurs and an older one caused even more destruction and made all the oceans boil.

4927597266_275e355960_oThe good news is that, with enough warning, we already have the technology to deflect asteroids. But the bad news is that we may not get enough warning, because there are thousands of asteroids—some of which could be on a collision course with the Earth right now—that we have not yet discovered.

This threat has spurred some to take matters in their hands, rather than wait for government agencies to do the work. The B612 foundation, for instance, is planning to launch a private space mission in 2018 that will discover and track hundreds of thousands of such asteroids.

If you can’t beat ’em, profit from ’em

Leaving the stories of doom behind, asteroids are fascinating for another reason: they hold clues about the formation of our solar system. For instance, according to theory, when the Earth formed into a planet, the process would have been too hot to have left any liquid water on the surface. So the current hypothesis is that water-rich celestial bodies, such as comets, brought the water when many crashed into the Earth during its early days.

A current space mission, called Rosetta, to the comet 67P recently tested this hypothesis. It found that the water on that comet was not of the same composition as that on the Earth. So if not comets, then the other celestial body that could achieve this feat are asteroids. This hypothesis will be tested by the Hayabusa-2 mission, launched in December by the Japanese space agency, when it will land three rovers on the asteroid 1999 JU3, and also collect and return a sample from the asteroid back to the Earth in 2020.

Even if they aren’t the source of terrestrial water, asteroids could be habitable, or at least resource-providing, stations for human colonies in outer space. And this isn’t just a crazy idea. Two private companies, Planetary Resources and Deep Space Industries, are currently working on projects to mine asteroids. They aim to harvest not just water, but also metals such as iron, nickel, platinum and palladium. Apart from the moon, few celestial bodies can boast of having such a close relationship with humanity.

First published in Lokmat Times. Lead image by ESA and ATG media lab. Asteroid image by Emily Lakdawalla (under CC-BY-NC-SA).

Curious Bends – metal-plated insect syringes, white tigers, steppe eagles and more

1. Found: the first metal-plated syringe in a living creature

On a fig tree in the beautiful campus of the Indian Institute of Science, researchers have found a wasp that uses a zinc-plated “syringe” to pierce through the skin of unripe fruit and lay her eggs. What’s more, to reveal this intriguing adaption of nature, they used jury-rigged video equipment to capture close-ups of the wasps. Of course electron microscopy was needed to be sure… still a nice example of jugaad. (3 min read)

2. Everything you know about the white tiger is wrong

The white tiger is not really an endangered species. It’s an oddball animal produced purely for human entertainment. Its natural tropical habitat in India is not good for a predator that has lost its camouflage, and, if any existed in the wild, they would have died out. Instead, they remain in our zoos, suffering from the consequences of severe inbreeding, all because they bring in the crowd and, thus, money. (7 min read)

3. After devouring vultures, diclofenac is eating its way through eagles

After pushing vultures to the verge of extinction in South Asia, the veterinary painkiller and anti-inflammatory drug diclofenac is turning out to be a threat to eagles as well. India, Nepal, Bangladesh and Pakistan have banned the drug’s veterinary use, but it is available for human use and hence gets used illegally to treat livestock. (2 min read)

4. One social enterprises’s attempt to provide sustainable clean water to rural India

Water ATMs are popping all over small villages outside India’s capital. Clean drinking water is available for ₹1/litre. If the ATM’s tank falls below a certain level, it triggers a text message to the control room to fix the problem. But the uptake of water purchase is nowhere near sustainable. People prefer the free option, even if it is not clean or easy. (5 min read)

5. The simple rule that is China’s weapon to win the war on malaria

From 26,000 cases in 2008, the incidence of malaria in China has dropped to 2,716 in 2012. The reason is that they follow a simple 1-3-7 rule. New cases must be classified within three days and risk to the local area evaluated within seven days. (3 min read)

6. Animated timeline: creation of Indian states from 1951 to 2014
India has a 29th state in Telangana. Economists argue that this is a good thing. New states grow faster than old ones. If they have their way, India may one day have 50 states.

Chart of the week

More than 2 million people responded to the “My World” survey run by the United Nations. They all unanimously agreed that education was their top priority, regardless of the economic background they were from. Action taken on climate change, on the other hand, sat right at the bottom, along with need for reliable energy at home. More from MSNBC here.

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