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Illegal sale of vaccines worth nearly $90 million has been uncovered by Chinese police last week. The event led police to arrest 37 people who were involved in the scandal in Shandong, the eastern province and the centre of the scandal. The scandal revealed downside of the world's second-largest medicine market.

The scandal which was reported by official Xinhua news agency on Wednesday has spurred angry debate in China. This also shows China’s inability to regulate a widespread medicine supply chain. "This vaccine safety case has drawn close attention, and shows there are many gaps in terms of regulation," Premier Li Keqiang said in a statement on the central government's website.

A new study opposes all past rumors about blondes’ IQ by showing that flaxen-haired people are as intelligent as people with dark hair. The study involved a number of people who were given a test that would determine level of intelligence in the participants.

Ohio State University researchers studied 10,878 men and women to know if intelligence has any relation with hair color. For availing apt results, the participants were given the Armed Forces Qualification Test, an exam used by the Pentagon to determine intelligence of all recruits.

You must have heard that occasional beer or glass of wine with dinner is healthy for you. There have been numerous studies advertizing the health benefits of moderate drinking. However, a new research has questioned the positive impact of moderate consumption of wine or beer.

Scientists collected and studied 87 earlier studies related to alcohol and death from all causes. They discovered that the findings of earlier studies associating moderate drinking to a long life could be untrue, and might have underlined benefits when there actually may be no advantage at all.

Postpartum depression (PPD) is a kind of depression suffered by new moms. Due to PPD, women start experiencing different emotions, ranging from excitement to fear and anxiety.

So far, the causes of PPD aren't known, but a latest study conducted in Belgium has revealed some surprising factors. Researchers discovered that expecting women, who deal with mood swings or self-esteem problems at the time of their second and third trimesters, have more chances of suffering from depression post delivery.

It suggested that in case doctors begin performing mental health screenings well in time, they can suggest moms to undergo treatment prior to labor. The United States Preventative Task Force recently suggested every woman to get screened.

A new study has suggested that stress hormone levels prior to pregnancy could affect a woman's risk of delivering a low birth weight baby. Generally, when you wake up in the morning, levels of the stress hormone cortisol are high and they go down as the day passes. However, the study authors said that some people have a low cortisol level when they get up in the morning, and a below normal decline during the day.

The researchers said that it could be linked to chronic stress and trauma history. The abnormal pattern has also been associated with the progression of many diseases, like cancer and hardening of the arteries. It could also predict the weight of unborn baby.

As part of a multipronged government campaign aimed at reversing an epidemic of abuse and death linked to drugs such as Vicodin and Percocet, federal health regulators are planning to bolster caution labels on the most commonly used prescription painkillers.

On Tuesday, the Food and Drug Administration (FDA) shared plans of addition of a new boxed warning, most severe kind of warning, to all immediate-release opioid painkillers, like combination pills that contain oxycodone and nonprescription drug ingredients.

In the US, the drugs, sold as Vicodin and a number of generic brands, have been among the most prescribed drugs. They accounted for over 135 million prescriptions in the US in 2012.