Imagine you've just finished running a marathon(26.2 miles, or 42.16 kilometers!) on a hot, sunny day.?
370310
You will need to hydrate externally, water, gatorade, you will definitely need to put electrolytes into your body before it wiull be able to restore any kind of balance
484676
long distance running :D
941355
First of all a marathon s 26.22 miles.  I would have to assume in the shape he was in and the diciplne he had.  He should be able to do it.\n\nSince\n1924 42.195 km 26.22 ml
607755
It is 85 and sunny here.  It was really muggy and cloudy earlier today though.  =)
1109710
28.38 degrees N, 77.12 degrees E
424160
my yellow window was sunny
1129201
stand in the hot sun long enough, youll sweat, there u go, solar energy
3658
I know friends that get tan or sunburn when they go skiing on a sunny day.... perhaps you are looking for a more complex answer.
686915
I'd would travel. I would walk a beach on every ocean. Taste thing's I would never otherwise eat. I'd lose myself in a crowd of people so large I could never fathom the size of it. But I would make sure that it all ended on a beautiful tropical beach with a froufrou drink in my hand and a smile on my face.
1001773
Here are some tips for you.  The other posters had good suggestions when they said to either run early in the day or later in the evening.  This is an excerpt of an article whose link I'm providing below.  There was also an interesting part about how runners can actually acclimate their bodies to the heat after 7-10 days.\n\nTo run safely in the heat, you must enable your body to dissipate the extra heat. First and foremost, avoid dehydration. When you run, you lose 3 to 5 cups of fluids per hour. This results in a smaller blood volume, with a lower capacity to carry heat to the skin. Thirst is a poor indicator of the body's need for water. Runners should drink water all the time, at least one gallon every day. A colorless urine is a good sign of adequate hydration. \n\nWhen running, drink a cup of water every 15 to 20 minutes.  Carry water on long runs, or plan to pass by public parks and schools that have water fountains. It also pays to know your neighbors. Many friendly neighbors leave water hoses outside for runners' use. You may also place water bottles on the course before the run, as long as you pick them up afterwards. \n\nOn hot and humid days, run early in the morning. Run in the shade when possible. Avoid direct sun light and blacktop surfaces. Wooded trails serve both purposes, and offer a change of scenery and relief from the pounding on the roads. \n\nWear loose-fitting and lightly colored clothes. The loose fit allows air to circulate and cool your skin. The light color reflects the sun. Never wear plastic or nylon sweat suits; they are dangerous. A hat, a sunscreen and sunglasses provide added protection from the sun's harmful rays.
912543
Unfortunately there is a marathon. I feel sorry for you.
180388
I wish. The longest run I've ever gone on was about 5 miles. I've probably hiked around 30 miles in a day a couple times. Not too exciting. I want to be able to run a marathon in the next three years.
177338
the sun!!!!!!!!!!!!!!!
611920
lotsa sunshine.......
636299
Vancouver, BC - clear, warm, and it was sunny all day.  Sun is going down but it was up in the 20s today.  Warm and beautiful here
276545
SUNNy FROM FiRST TO LAST<3!!
1149699
I love it when its sunny and hot! You feel nice inside and its lovely , everyone seems to smile and is more pleasant.