Again, cool down and drink some juice. Be sure that your diet during the summer includes foods to replace the salt lost. Sometimes, due to extreme heat, a person will faint especially when standing still in the sun. So avoid standing in one place while working outdoors. If you do faint, though, lying down for a period of time should help you recover.
Heat exhaustion is a common response to working in summer weather.
If you are suffering from heat exhaustion you may feel dizzy, weak, or have chills. Your pulse will be rapid. You may have a headache or feel sick to your stomach. Stop working, move to a cool spot, and lie down or rest with feet slightly elevated. Drinking liquids will help.