Lack of sleep can affect your reaction time, your memory and how well you process information.

Lack of sleep may shrink your brain

Poor sleep patterns can contribute to such brain disorders as Alzheimer's and dementia. So it stands to reason that, if a lack of sleep can …

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Fight brewing over liver donation

The transplant system takes geographic factors into consideration. That means the sickest person in the country doesn't always get dibs.

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Avoiding menopause weight gain

The "change" causes more than hot flashes and mood swings; it can lead to some very unwelcome changes in the number on the bathroom scale.