Part iii – Acumen Stopwatch User Manual
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Part III
Getting to Know Heat Index
High humidity makes heat more dangerous because it slows the
evaporation of perspiration-the body's natural cooler. That caused
outdoor exercise more dangerous even for those in good shape.
Key rules for coping with heat are to drink plenty of water to avoid
dehydration and to slow down and cool off. Overheating can cause
serious, even life-threatening conditions such as heat stroke.
The Heat Index is to show how hot a particular combination of heat and
humidity feels. The Heat Index in the Hydra-Alert
TM
is a report of the
latest weather conditions based on the current temperature and the
relative humidity. You can refer to the following Heat Index Chart to know
the apparent temperature and to avoid getting into danger during
exercise.