I'm so hot!!

Hello~
How are you these days? I'm almost dying, because of the sweltering heat.
I'm really sensitive to the heat, so I hate summer. Fortunately, from this Monday we are allowed to use the air conditioner in the dorm. (I don't go out of the room in the afternoon any more!)
Anyhow, I become so exhausted (too easily, even right after I go out of my room for classes) that I can't concentrate on studying(or doing something).
Every summer, the same thing happens to me.
So, I wonder how you overcome this murderous heat.
Can you recommend anything that can help me?

Teaching 'SPEAKING ENGLISH' ?

In my English class, I used to focus mostly on reading or listening part.
Of course, the two parts are most influential in the regular tests, however, also, it is because I hesitated to teach 'speaking' part.
If I can use right and proper English expressions or speak English more fluently, I think, I will teach students speaking part more often in my class.
Anyhow, even though I am not a perfect English speaker, as an English teacher, I can't ignore 'speaking' part any more. However, I think if I know some appropriate methods to teach that part, I can teach it more easily and successfully, despite a poor English speaking ability.
So, I want to get some tips for a successful speaking class from you.
In your class, how do you teach 'speaking' part?
Do you have any good idea?