Rats with naturally high stress levels were far more likely to self-administer cannabis when given access. Behavioral testing showed that baseline stress hormones were the strongest predictor of ...

Researchers have long established that hormones significantly affect the brain, creating changes in emotion, energy levels, and decision-making. However, the intricacies of these processes are not ...

Trust in a bottle? It sounds like a marketer's fantasy, like the fabled fountain of youth or the wild claims of fad diets. Yet that's what Swiss and American scientists demonstrate in new experiments ...

Growth hormone, known for regulating height and physical development, has been found to be deeply involved in the brain's ...

First on Fox: President Donald Trump's National Institute of Health on Friday quietly cut over $1 million in federally funded research evaluating if rats going through hormone therapy were more likely ...

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The National Institutes of Health, under President Joe Biden, has spent millions of dollars funding experiments where animals are given sex-change procedures and studied for the benefit of the ...

Hormones are the body’s chemical messengers. They act on various tissues and organs in the body to change their behavior. For example, the hormone prolactin stimulates the production of breastmilk.