Here’s Why Jennifer Aniston Can Wear a Coat and Scarf in the Summer and Not Melt

Is it hot in here or is it just us? (Photo: Getty Images)

Looking hot, Jen!

Yesterday afternoon, Jennifer Aniston and Justin Theroux were photographed while out and about in New York City on a picture-perfect day — sunny and somewhat breezy with temperatures in the low- to mid- 80s. The couple, who just returned from vacationing in the Bahamas, were dressed comfortably and causally during their stroll. Theroux was wearing a sleeveless T-shirt with skinny jeans, while Aniston opted for a long-sleeved trench coat and a scarf (or two) wrapped around her neck.

Yes, a coat and scarf in 80-degree weather.

Mrs. Theroux is not the only person who doesn’t appear to be fazed by extra layers in the heat. In fact, researchers from Tel Aviv University and Harvard University investigated the possible reason that the Bedouins — people who live in the Sinai Peninsula of Egypt — drape themselves in black robes while spending their days in the sweltering desert sun. As it turns out, the study authors discovered, wearing a black robe wasn’t any hotter than donning a white one, and any additional solar heat was absorbed by the robe before it had a chance to reach the skin.

A bundled-up Jennifer Aniston seems unfazed by the 80-degree weather in New York City. (Photo: FameFlynet)

So, do we have different internal thermostats?

“In general, we’re supposed to have similar temperatures, so people shouldn’t be running extra cold or hot,” Kristine Arthur, MD, an internist at Orange Coast Memorial Medical Center in Fountain Valley, Calif., tells Yahoo Beauty. “But it certainly doesn’t mean there’s a problem if someone tends to wear a little more clothing or a little less — it’s really more of an issue if it’s affecting a person’s quality of life.”

However, if an individual feels chilly most of the time, it may be signaling a possible health issue. For example, he or she may be too thin or underweight, have poor circulation, have hormonal issues, or be dealing with a thyroid problem. “If you have an underactive or sluggish thyroid — which is a lot more common than an overactive thyroid — those people usually complain about feeling cold,” adds Arthur.

In the most severe cases, someone could be suffering from Raynaud’s disease, a rare autoimmune disorder that causes blood vessels to narrow, leaving certain areas of the body (usually fingers and toes) cold or numb.

But chances are, one’s perceived body temperature is connected with Mother Nature. “People really acclimate to their surroundings after a certain time period,” concludes Arthur. “If you are living in Southern California, like where I live, we get used to hot weather. If it gets into the 60s, we’re going to put a sweater on. Maybe in Jennifer Aniston’s situation, she’s used to the weather in Southern California, so when she visits New York City, she just bundles up a little bit.”

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