no, summer is like hell!
the heat is suffocating, actually feel like I'm dying 
Well not eaing and dehydrating is going to make you feel worse.
Best way to keep cool is to drink cold drinks. 
And when you go out, wet your cap. Makes a big difference on hot sunny days.
Hold your wrists, and if it is really bad also your ankles, under a cold running tap every now and then. That gives a good cooling effect to your entire body.
I used to utterly hate the heat, and to flee from it whenever I could.
Over the years it has gotten a lot better.