Top stories in health and medicine, August 28, 2012

This series is brought to you by MedPage Today.

1. Extra Weight May Speed Breast Cancer Relapse. Heavier women may be at higher risk of recurrence of the most common type of breast cancer after treatment, and less likely to survive their disease.

2. Heavy Pot Use Tied to IQ Drop. Individuals repeatedly diagnosed with cannabis dependence during young adulthood had noticeable declines in IQ scores by age 38, especially when the heavy use started in their teens.

3. Check Kids for Sleep Apnea. Children who frequently snore should be evaluated for obstructive sleep apnea syndrome (OSAS), according to a new guideline from the American Academy of Pediatrics.

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