Lim Min Kwan

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Scientists have discovered the mechanism by which a good night's sleep improves our learning and memory. Find out more:

Night work 'throws body into chaos'

<b>Doing the night shift throws the body "into chaos" and could cause long-term damage, warn researchers.</b><p>Shift work has been linked to higher rates of type 2 diabetes, heart attacks and cancer.<p>Now scientists at the Sleep Research Centre in Surrey have uncovered the disruption shift work causes at the …

Dial C for corruption - Delhi's anti-graft helpline is deluged with calls on first day - via Guardian global development

Today's headlines from around the world: - Israel's former PM Ariel Sharon dies - Egypt army chief eyes presidency bid - Hollande under pressure after affair report - India diplomat row: Delhi says 'no stand-off' with US - S Sudan conflict: UN calls on government to free prisoners - CAR conflict: 'Tensions still running high' in Bangui - Seven hurt as gunmen fire on Bangkok protest - Ukraine ex-minister hurt in Kiev clashes - Today's sport headlines - BBC Weather

Shi'ite-Sunni ceasefire takes hold in north Yemen | Reuters

SANAA (Reuters) - Fighting in north Yemen between Shi’ite Muslim Houthis and Sunni Salafis stopped on Saturday as a ceasefire deal took hold, according to a presidential committee trying to help end the conflict.<p>An artist paints a graffiti depicting men aiming firearms at themselves, in Sanaa …

Greece's Golden Dawn cries foul over links to "criminal" group

Supporters of Greece’s far right Golden Dawn party made their voices heard as three party members appealed against accusations of belonging to a criminal group.<p>Charges denied by the party’s spokesman and deputy Ilias Kasidiaris.<br>He believes its members are being persecuted while “terrorists and …

Brazil, emerging world power, 'impotent' over prison gangs

Gang violence in Brazil’s prison crisis has won the government the condemnation of Human Rights Watch. This follows video posted online by the Folha de São Paulo newspaper showing the decapitated and further mutilated bodies of three prisoners.<p>They were killed at the Pedrinhas Prison Complex in …

Could antibacterial soaps be doing more harm than good? The US Food and Drug Administration (FDA) has warned that antibacterial chemicals in soaps and body washes may pose health risks and have called for a safety review of such products. Recent studies indicate an ingredient in such products could scramble hormone levels and boost drug-proof bacteria. Manufacturers have until the end of 2014 to submit the results of clinical trials on their products, the FDA said. The new regulations would be finalised in 2016. Photo courtesy of AFP.

A 1.42 million-year-old metacarpal bone found at a burial site in Kenya puts the origin of human hand dexterity more than half a million years earlier than previously thought It is the earliest fossilised evidence of when humans developed a strong enough grip to start using tools. Apes lack the same anatomical features. Follow the link above to learn more. Tell us what you think about the discovery in the comments section below. Image below demonstrates the placement of the metacarpal bone in the human hand - provided by the University of Missouri.

A woman has had to be rescued after walking off a Melbourne pier while checking Facebook on her phone. If you have an embarrassing story of using your phone, you can share your experience with us here: Police said the woman, who couldn't swim, had managed to keep hold of her phone "throughout the entire ordeal". They urged people to pay more attention when using social media around water.

"The actions we are proposing will halve the number of premature deaths from air pollution. It's also good news for nature and fragile ecosystems." The European Commission has outlined plans for new air quality laws that it says will save thousands of lives every year. The new measures aim to reduce the levels of pollutants by around 20% from current levels by 2030. The Commission says the new measures will prevent 58,000 premature deaths a year and save member states 40bn euros. Photo courtesy of Getty Images.

Britain was inappropriately involved in the rendition and ill-treatment of terror suspects in the wake of 9/11, an inquiry has revealed: There is no evidence British officers were directly involved in torture, according to the findings.

Michael Adebolajo and Michael Adebowale have been found guilty of the murder of soldier Lee Rigby in Woolwich, south-east London: The jury, which considered its verdicts for just 90 minutes, found the pair not guilty of the attempted murder of a police officer at the scene. Lee Rigby's wife said the family was satisfied justice had been done. "This has been the toughest time of our lives. No one should have to go through what we have been through as a family." More reaction and live updates from BBC News:

Has a US company re-invented the wheel? A new device named the Copenhagen wheel can turn any bicycle into an electric-hybrid vehicle - it stores energy when you're cycling, and gives it back when you're struggling. It also connects with your smartphone so you can know how many calories you're burning while cycling. Would you buy one?

Where is this Tesco supermarket? In the Chinese town of Dangong, which borders with North Korea: And - thanks to the long alliance between the two countries - Dandong is full of North Koreans. The BBC's Lucy Williamson meets them.

This is a January sale with a difference. The US military is auctioning off millions of pounds of equipment as they dismantle a network of bases in Afghanistan. Full story:

Uganda's parliament has passed a new anti-#gay law which US President Barack Obama has called "odious": The bill toughens the punishment for homosexual acts to include life imprisonment for repeat offenders. It also makes it a crime - punishable by a prison sentence - not to report homosexual activities to the police. President Yoweri Museveni still has to sign the bill before it becomes law.

The once-powerful uncle of North Korean leader Kim Jong-un has been executed for treason after being branded "despicable human scum". Full story: Photo: AP

Syrian refugee kids support families

ZAHLEH, Lebanon — Every morning in northeastern Lebanon, hundreds of Syrian children are picked up from refugee settlements, loaded onto trucks and …

Portland, ME

Exclusive: Foreign doctors raise alarm over Syrian birth defects

Doctors working inside Syria are witnessing a “shocking” number of babies being born with severe deformities - a result of the collapse of the …

Are the brains of men and women "wired differently"? A US team at the University of Pennsylvania scanned the brains of nearly 1,000 men, women, boys and girls and found striking differences between the sexes. Male brains appeared to be wired front to back, with few connections bridging the two hemispheres. In females, the pathways criss-crossed between left and right. Follow the link above to see what these directional differences could mean and tell us what you think in the comments section below.

These images show just how differently cats and humans see the world

Cats and humans have very different perspectives on the world, both literally and figuratively. Indeed, as these visualizations beautifully …

Google Malaysia Site DNS Hacked, Credit Claimed By ‘Team Madleets’ Hacker 1337

Google’s Malaysian site has been hacked and replaced with a splash screen giving credit to a group called “Team Madleets.” The normal site has been offline for several hours as of late Thursday afternoon and the page lists a series of handles that are ostensibly part of the team responsible. <b>Updated</b> …

Blood money

LAST month Rodney Leon, a Haitian-American architect, won a competition for a memorial to victims of the slave trade. His white marble “Ark of …

Man dies after self-immolation on US National Mall

<b>A man who set himself on fire on Washington DC's National Mall has died from his injuries, police say.</b><p>The man poured a can of petrol on himself before setting himself alight on Friday. Police are investigating the motive for the act.<p>Passing joggers used their shirts to try to extinguish the …

US special forces have carried out an attack on a senior leader of the al-Shabab Islamist group in a raid in Somalia, US officials are quoted as saying by American media They say a US Navy Seals team targeted the man after approaching a villa in the southern town of Barawe by sea. There are conflicting reports about whether he was captured or even killed. Al-Shabab said it carried out the Westgate attack in neighbouring Kenya which left at 67 people dead.

Relief flooded through me and then the captain's voice came back on, much more composed this time: "A deranged man broke into the cockpit and tried to kill himself and all 400 people on board. He's now in a passenger restraint kit in the galley and we'll be landing 10 minutes behind schedule." It was wonderfully British; I half expected him to wish us a pleasant flight. Photograph: Mark Chilvers for the Guardian