Sweating: This is very specific question! during the summer you tend to get dehydrated and a b-blocker can prevent you from sweating but also it can prevent you from increasing your heart rate, which is necessary if you get dehydrated- so that in the summer b-blocker can lead to an increase in dizziness or even passing out if you don't drink enough water. It might even exacerbate asthma more so.
Answered 3/10/2013
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