Ubiquinone, a metabolite critical to generating energy in cells, has long been thought to be the only mitochondrial electron transport chain carrier in mammals. Although other electron transporters ...

A herd of African elephants instinctively formed an "alert circle" to protect the younger elephants at the San Diego Zoo ...

Anxiety and air hunger can become cyclical: You feel anxious, so you experience air hunger, and then struggling to breathe triggers more anxiety. You may then become anxious about, well, feeling ...

High cholesterol, or hypercholesterolemia, usually has no apparent symptoms and is therefore labeled as a "silent killer." Yet some of its symptoms show up when performing physical exertion such as ...

Results of a study show convergent genetic adaptation under hypoxia (lack of oxygen) between populations living at ...