SANTA BARBARA, Calif. -

People over the age of 65 shouldn't be outdoors in the extreme heat. Too much sun can cause several heat-related illnesses including heat stroke.

Families who do not have the luxury of providing a caregiver should visit the person who is at risk at least twice a day. Keep in mind that most elderly people don't realize how hot it really is and might carry on with their normal daily routines, including layering their clothing.

"Sometimes I'll enter a home and find the person wearing two sets of sweaters, or they will be napping with a pile of quilts on them. They will have no clue how hot it is outdoors," said Liana Carty, nurse case manager.

Here are some warning signs and symptoms of heat stroke:

* An extremely high body temperature

* Red, hot, and dry skin (no sweating)

* Throbbing headache

* Dizziness

* Nausea

Signs and Symptoms of Heat Exhaustion:

* Heavy sweating

* Paleness

* Muscle Cramps

* Tiredness

* Weakness

* Dizziness

* Headache

* Nausea or vomiting

* Fainting

* Skin: maybe cool and moist