Biomedical technology

Wearable patch can painlessly deliver drugs through the skin

The skin is an appealing route for drug delivery because it allows drugs to go directly to the site where they're needed, which could be useful for wound healing, pain relief, or other medical and cosmetic applications. However, ...

Medical research

Rapid eye movement sleep helps protect against predator attack

Rapid eye movement (REM) sleep brings about brief but periodic awakenings. In 1966, Dr. Frederick Snyder reported the "sentinel" function of REM could help animals prepare a fight or flight response against potential predator ...

Neuroscience

Cancer-like metabolism makes brain grow

The size of the human brain increased profoundly during evolution. A certain gene that is only found in humans triggers brain stem cells to form a larger pool of stem cells. As a consequence, more neurons can arise, which ...

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