Is low body temperature a cause for concern?
I don't think your enzyme stopped working. Over time, many people become more sensitive to the effects of caffeine, and as we age, metabolism does tend to slow down, and the heart can get more irregular. If avoiding caffeine keeps your symptoms away, I would recommend that you continue to do so.
The booklet on abnormal heart rhythms explains the more common heart rhythm disturbances in detail. Readers can obtain a copy by writing:
Book No. 107
628 Virginia Dr.
Orlando, FL 32803
Enclose a check or money order (no cash) for $4.75 U.S./$6. Can. with the recipient's printed name and address. Please allow four weeks for delivery.
Dr. Roach regrets that he is unable to answer individual letters, but will incorporate them in the column whenever possible. Readers may email questions to ToYourGoodHealth@med.cornell.edu or request an order form of available health newsletters at 628 Virginia Dr., Orlando, FL 32803. Health newsletters may be ordered from www.rbmamall.com.
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