Medical research

Solving a biological puzzle: How stress causes gray hair

When Marie Antoinette was captured during the French Revolution, her hair reportedly turned white overnight. In more recent history, John McCain experienced severe injuries as a prisoner of war during the Vietnam War—and ...

Neuroscience

Scans show brain's estrogen activity changes during menopause

The transition to menopause is marked by a progressively higher density of estrogen receptors (ER) on brain cells, a measure that remains elevated in women up to their mid-sixties, according to a new brain imaging study led ...

Oncology & Cancer

New insights into how tumors on adrenal glands develop

Researchers from Kyushu University's Faculty of Medical Sciences report on new insights into the mechanisms of how adrenal gland tumors are formed. The team identified a new type of tumor cell population that they termed ...

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Gland

A gland is an organ in an animal's body that synthesizes a substance for release of substances such as hormones or breast milk, often into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland).

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