Take her to the ER. If she is already in hospital give O2. Check her VS. Offer a blanket. Call for additional help. Inform charge nurse too.
More likely to experience mental illness
The traditional recommendation was that everyone should consult with their doctor before they started to exercise. The reason behind this is that, in theory, when you start to participate in a moderate or intense activity, there is a slightly increased risk of a heart attack or cardiac complications.
Even having a cold or sore throat makes you more susceptible to dehydration because you're less likely to feel like eating or drinking when you're sick. So yes you can get dehydrated in the cold.
