What are the best ways to help tolerate the heat?

These are the things I always do.

1. Always be hydrated! Bonus if it's a ice cold drink!

2. Dress for the heat! The less layers the less hot I get

3. Take rests in shady coolish areas if possible.
What are the best ways to help tolerate the heat?
What are the best ways to help tolerate the heat?
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