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Too much sitting can increase your risk of sudden death.

Does stress make us sick? CBS News medical correspondent Dr. Holly Phillips reports on a new study that suggests high stress is linked to a higher risk of heart disease, influenza and allergies.

Are fried foods really that bad for us? Dr. Holly Phillips reports on a new study that shows eating fried foods, even on a regular basis, doesn't necessarily lead directly to heart disease

Two new studies are raising hope that brown fat -- fat that burns calories like a furnace -- may some day be used to help people control their weight.

A recent study shows that people with joint pain reported that the weather affected their pain level -- even before the weather changed. Dr. Holly Phillips reports.

A new study concludes that sleep is essential to losing weight, since sleep-deprived people tend to overeat.

A new study found kids given active video games were no more physically fit than those given traditional games they could play just sitting on the couch.

New research shows your brain may look and act older than it is if your diet is low in omega-3 fatty acids, acids, which are plentiful in most fish.

Does the amount and quality of your sleep at night impact your memory long-term? Dr. Holly Phillips reports on a new study that suggests lack of sleep impacts memory

Can citrus fruits lower the risk of having a stroke? CBS News medical contributor Dr. Holly Phillips reports on a new study that suggests flavanones can lower the risk of stroke in women.

Vitamin D sales have soared because supplements have been linked to a reduced risk of certain illnesses. But could too much be as bad as too little? Dr

New studies indicate coffee may help with depression and lowering the risk of diabetes, among other benefits. Dr. Holly Phillips reports.

New research shows antibiotics don't make a difference when treating sinus infections. CBS News medical contributor Dr

The next time you get your blood pressure checked, ask your doctor to test in both your right and left arms. CBS News medical contributor Dr. Holly Phillips speaks about a new study on blood pressure, and what it reveals.

Does sitting for long periods of time in small airplane seats increase your risk for blood clots? CBS News medical contributor Dr.