The borough is experiencing oppressive heat, and officials want to make sure you're taking the right precautions. 

Mayor Bill de Blasio held a news conference to remind New Yorkers to stay hydrated with plenty of water, even if you don't feel thirsty, and to minimize strenuous activity during peak sun hours. If you're heading outside, wear sunscreen and a hat, along with light, loose clothing. 

The mayor urged everyone to do their part to prevent power outages. He said it's important to conserve energy in any way you can, including keeping thermostats set no lower than 78 degrees. Consolidated Edison reported a small number of power outages by Wednesday evening.

The company offered some additional tips for conserving energy while using air conditioning: Residents should turn off air-conditioning units, lights and other appliances while out of the home and use a timer or smart technology to turn on the air conditioner about a half-hour before returning home; residents should keep doors and windows closed to keep cool air in and hot air out; and even when using air conditioning, use fans to improve circulation within the home.

Health experts are also reminding residents about the signs and symptoms of heat exhaustion, such as nausea, fatigue, headaches and extreme thirst. If you notice a change in someone's mental behavior, bring them to the emergency room right away. 

Don't forget to keep an extra close eye on the elderly, children and pets.