- Written by Phillip A. Low, M.D.
Micturition (or post-micturition) syncope is fainting during or, more commonly, immediately after urination due to a severe drop in blood pressure. Micturition syncope is most common in older men and usually occurs at night after a deep sleep.
- Written by Jay L. Hoecker, M.D.
Vicks VapoRub doesn't relieve nasal congestion. But the strong menthol odor of VapoRub tricks your brain, so you feel like you're breathing through an unclogged nose. By contrast, decongestant tablets and nasal sprays sold over-the-counter appear to narrow blood vessels in the lining of your nose, leading to reduced swelling in your nasal passages.
- Written by Daniel K. Hall-Flavin, M.D.
Bipolar disorder and alcoholism often occur together. Up to half the people who have bipolar disorder also struggle with alcoholism.
- Written by Thomas J. Salinas, D.D.S.
Whitening toothpaste can appear to whiten teeth slightly by removing surface stains, such as those caused by drinking coffee or smoking. However, whitening toothpastes can't change the natural color of your teeth or lighten a stain that goes deeper than a tooth's surface.