On the second straight day, the National Weather Service (NWS) has issued another excessive heat warning and has urged people not to go outside and stay indoors in the air conditioning.

And for those who will be outside, the NWS suggested that people wear light, loose clothing, to stay in the shade and to drink plenty of water and to only be outside during the early part of the day or in the early evening when temperatures are supposed to be at their lowest.

But Richard S. Toof, M.D., also gives a breakdown of the signs of heat stroke:

• Increase of core body temperature
• Lightheadedness
• Nausea
• Weakness
• Vomiting
• Headaches
• Muscle Cramps
• Unconsciousness

Toof said that heat stroke can severely damage internal organs and may even lead to death, which is what an article by medicinenet.com also stated.

People suffering from heatstroke should cool themselves off by drinking plenty of water, the Havertown doctor suggested.

Toof advised that people should call 911 should they or someone they know are suffering from severe heatstroke, especially if that person is an older adult or child.

“It’s better to play it safe,” Toof said about calling 911.