Estrogen is a hormone that plays a role in both the male and female reproductive systems. In females, it contributes to reproductive and breast health, among other functions. Estrogen contributes to ...

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The endocrine system is a network of glands and organs that uses chemical messengers called hormones to regulate metabolism, growth, reproduction, heart rate, blood pressure, and sleep-wake cycles.

Cognitive functioning affects how people think and their ability to remember things. Impairment in this area of brain health may cause a decline in how someone responds to their environment mentally ...

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THE memoir in which Bessel, the astronomer, examined in detail the functions which now bear his name was published in 1824, and was the outcome of his earlier researches concerning the expression of ...