Yesterday night I returned to my hostel after class at night. I was feeling so much tired, so I had my food quickly and went to sleep. Unfortunately I forgot to switch on the fan. I was sweating profusely till whole night because the average temperature in Rajasthan is about 45 degree centigrade. I did not wake up to switch the fan. Whole night my body lost water in the heat and my bed was wet. When I tried to get up in the morning I feel difficult to get up may be because of the water loss by sweating. My head seemed to whirl and I feel like I was about to faint. My world in front of me became dark and I cried. Two of my friends hear my voice and they helped me. They washed my head with water. Now my question is am I all right now? Does fainting due to dehydration harms the brain. I am a student .Did the fainting affected my brain and memory Power?