All Stories
- Agriculture
The cabbage’s clock
A newly harvested plant, fruit or vegetable does not turn off — like a switch — and die, scientists report. Instead, an internal “clock” inside the fresh-picked plant continues to tick away. It responds to light and darkness, just as when it had been rooted in the soil.
- Animals
Amputated ‘finger’ tips grow back
Both toenails and toe tips grew back in mice, thanks to special ‘stem’ cells living beneath the nails.
- Life
Explainer: What is a stem cell?
Special cells have ability to turn into several different types
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- Health & Medicine
Fat becomes a disease
Medical group decides it is time for doctors to view — and treat — obesity as a disease.
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- Brain
Headers and memory loss
Soccer players who frequently use their heads score worse on memory tests.
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- Health & Medicine
Infection time
Disease is more severe when it hits in the morning, at least in mice.
- Brain
Explainer: Our bodies’ internal clocks
Biological clocks determine hunger, sleepiness and other daily rhythms.
