As New Yorkers try to beat the heat for the fourth straight day, there's word the soaring summer temperatures contributed to the death of a Staten Island man earlier this month.
The official cause of death for the 57-year-old was hyperthermia, or exposure to elevated temperatures.
The man's death occurred back on July 8.
He did have underlying medical conditions.
Meanwhile, with another day of soaring temperatures and a heat advisory still in effect, cooling centers will remain open across the five boroughs.
They will be open through at least tomorrow.
All city pools and beaches are also open.
City residents 18 years or older can open up a fire hydrant, but will need to get an approved spray cap from a local firehouse first.
On Thursday, students who were part of a Department of Environmental Protection program to spread the word about safely releasing hydrant water tested the caps in the Concourse Village section of the Bronx.
"It's really dangerous. It's a thousand gallons per minute could knock kids over could flood out streets and its not safe for traffic. And it can lower water pressure if enough are open. So that is dangerous, with not enough water pressure for fires," said DEP Commissioner Carter Strickland.
"A lot of people are surprised and didn't understand what was going on so now they're happy about it. They're willing to go to the firehouses and get the caps so they can still play in the pumps," said Hydrant Education Action Team Member Caandra Wong.
Last June and July, there were 16,000 complaints about illegally opened fire hydrants.
This year that number is down by more than half.
More important than running through water, city officials say, is to drink plenty of water during the heat wave.
Officials in the Visiting Nurse Service of New York recommend staying hydrated and taking cool baths or showers throughout the day.
As the heat can be especially dangerous for seniors, visiting nurses checked up on patients across the city.
"We're educating them to make sure that they're drinking plenty of water, making sure they're staying inside during the hottest time of the day, which is between 10 a.m. and 2 p.m.," says visiting nurse Amelya Blake. "If they have to go out, make sure they're going out in early in the morning or late in the evening, when it's the coolest."
"I think it's excellent. Some people really need it and it's nice to know that you're checking up," said Julia Weiss, a patient.
Visiting nurses also check patients for symptoms of heat exhaustion and heat stroke, as they say the elderly population is particularly vulnerable to those conditions.
Signs include stomach cramps, dizziness, headaches, and shallow breathing.
Those with mild symptoms can use normal means to cool down, but those with persistent conditions should seek medical attention.
For more tips on beating the heat, visit nyc.gov.