How does sleep affect your heart rate?

During waking hours you may feel your heart rate fluctuating, and activity or intense emotions can cause it to spike. But what happens to your heart rate when you sleep? It varies then too, depending on the phase of sleep you are in.

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Are early detection and treatment always best?

The culture of American medicine has long believed and supported the idea that more early detection and treatment is best. But some testing is costly, invasive and carries needless risks, and some conditions go away on their own. Early detection and treatment can be lifesaving — just not for every health issue.

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Shingles of the eye can cause lasting vision impairment

There are about one million cases of shingles in the US each year, and up to 20% of those involve nerves in the head, where the infection can affect various parts of the eye. If a case of shingles involves the upper face, forehead, or scalp, it is important to see an ophthalmologist promptly, because complications can lead to eye damage and possible vision impairment.

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3 simple strategies for stress relief

As we wade through our daily lives, stress is almost impossible to avoid –– particularly these days. Instead of enduring stress and letting it engulf you, try one or more of these three easy strategies to relieve it.

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Do hair dyes increase cancer risk?

Many studies have explored the relationship between hair dye use and risk of cancer or cancer-related death, with conflicting findings. In a recent study, researchers analyzed survey data from over 117,000 women collected over several decades regarding hair dye use and overall cancer risk.

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More intensive treatment of DCIS reduces the risk of invasive breast cancer

With increased rates of diagnosis of very early breast cancer known as ductal carcinoma in situ, there has been controversy about treatment. A recent study found that having DCIS was likely to lead to invasive breast cancer later, and also that women who chose more intensive treatment early were less likely to have invasive breast cancer.

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