Long Islanders working outside in the heat are taking precautions to stay safe.

"As soon as you step outside, the heat just hits you, the humidity," said Kevin Connors, a highway maintenance worker.

Crews with the New York State Department of Transportation have been working outdoors during this heat wave.

But they say they're taking extra breaks, sitting in the truck to cool off, drinking water and doing lighter work because of the high temperatures.

"Focusing more on litter picking, mowing, things that are a little bit calmer for the crews," said Stephen Canzoneri, with the New York State Department of Transportation.

On extremely hot days, doctors say hydrate - not just with water - but with electrolytes, which people lose when they sweat.

Also be careful of continued exposure to the heat day after day.

"One day might tolerate it, but the next day they're already dehydrated to begin with and then that exposure the next day could have a much bigger effect on their body," said Dr. Matthew Projansky, with Northwell Health.

Firefighters with the Commack Fire Department have been out responding to calls, wearing their heavy gear with jackets that trap heat.

"Keep water coolers on the rigs for our members when they need. We're mindful to switch out our manpower more often," said Christopher Ciaccio, first assistant chief with the Commack Fire Department.

Doctors say warning signs to watch out for include dizziness and cramping and say you can cool your body temperature down by staying in the air conditioning or having a cold drink - but ice coffee will dehydrate you.