I AM NEW TO THE CAH MESSAGE BOARD, AND I AM AN ADULT CARRIER OF CAH.  MY ENDOCRINOLOGIST HAD RECOMMENDED THAT ON DAYS THIS HOT, AND WHEN YOU ARE USING UP A LOT OF ENERGY, TO TAKE AN EXTRA DOSE OF FLUDROCORTISONE BECAUSE THAT HELPS TO REPLACE THE ELECTROLYTES AND HELPS TO BALANCE YOU OUT.  IT WILL ALSO LAST LONGER THAN FOODS OR BEVERAGES WITH ADDED SALT.  THE WAY THAT I TRY TO MAINTAIN MY LEVELS AND TO COPE WITH THE HEAT ON DAYS LIKE THIS IS TO KEEP MY SUNGLASSES ON TO PREVENT HEADACHES, AND TO WEAR A FULL BRIMMED SUN HAT TO KEEP MY HEAD COOL, SINCE YOUR HEAD IS ONE OF THE LARGEST SOURCES OF TEMPERATURE CONTROL IN YOUR BODY.