Health

The 'snowball' fight over global deep freeze periods

A research team has picked a side in the 'Snowball Earth' debate over the possible cause of planet-wide deep freeze events that occurred in the distant past. According to a new study, these so-called 'Snowball' Earth periods, in which the planet's surface was covered in ice for thousands or even millions of years, could have been triggered abruptly by large asteroids that slammed into the Earth.

'There is no right or wrong way to have alopecia'

Gail Porter, with her new wig, smiling at the camera

Gail Porter has shown people that bald is beautiful - but she can wear wigs too, says campaigner.

From growing roots, clues to how stem cells decide their fate

Researchers have captured time-lapse videos of stem cells dividing in growing plant roots. By watching how the cells divide in response to certain chemical signals over time, the team is uncovering new clues to how stem cells choose one developmental path over another.

Protein accumulation on fat droplets implicated in late-onset Alzheimer's disease

In an effort five years in the making, researchers describe the interplay between fats and proteins in brain cells and how their dysfunction contributes to the development of late-onset Alzheimer's disease.

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The 'snowball' fight over global deep freeze periods

'There is no right or wrong way to have alopecia'

From growing roots, clues to how stem cells decide their fate

Protein accumulation on fat droplets implicated in late-onset Alzheimer's disease

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