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Air pollution affects happiness, Chinese study finds

Researchers in China have found a link between happiness and air pollution levels, using social media to gather information about people's mood in different areas.

Could we grow human organs for individual transplant patients?

Researchers are developing a technique using stem cells to form complex tissues.

A new approach to obesity

How chronic inflammation can lead to cancer

Can our gut bacteria be programmed to fight disease?

A new way of killing harmful bacteria

What causes brain degeneration?

A breakthrough in understanding amnesia

A new target for anti-malaria drugs

The successor to the Human Genome Project

A new way of encouraging natural sleep