Much of the United States is dealing with oppressive heat right now.  I know here in DC, the heat and humidity is lke living in a sauna.  In conditions like these, it's important to take reasonable precautions:

• Limit outdoor activity as much as possible.  Let the grass and weeds grow a few days.  If you must work outside, try to do it in the early morning or the evening.
• Drink as much water as possible.  You can carry a water bottle with you or keep a pitcher on your desk or in the fridge.
• Stay indoors if you can — especially if you have air conditioning.
• If you go outside, wear a hat and sunscreen.
• Take it easy on yourself until this weather breaks.