My mother who was 80 at time went to Turks+Caicos on vacation in April and the weather there was hot.She lives in Canada so the day after we arrived we walked in the hot sun around noon (although she had a hat and water) , after we stopped to drink something cold after walking about 30 min. and then went into some shops. About 10 min later, she said something to me and her speech was slurred. We found out it was a mini stroke after. My question: could the dramatic change in climate from cold to hot , have caused the stroke, and how do you prevent that from happening again? thank you