12 Medical Reasons You're Always Cold



Constantly reaching for a sweater? Experts share what might be behind your shivers.

You have low iron

If your hands and feet are always cold, iron-deficiency anemia might be to blame. Red blood cells need iron to carry oxygen into the blood, and low levels of iron could hurt your circulation, says registered dietitian nutritionist Alyssa Tucci, MS, of Compass Nutrition. “Coldness in extremities—hands and feet—is most pronounced, because the body is smart, so it diverts blood to vital organs like the heart and brain first,” she says. Meat is the most common dietary source of iron. Leafy greens and legumes are good sources, but pair them with a vitamin C-rich food like red pepper for maximum absorption, she says; it’s harder to absorb iron from plants. Here are some risk factors for iron deficiency.

You need more vitamin B12

“People might assume they’re not getting enough iron when it’s really a B12 issue,” says certified holistic nutrition coach Andrea Moss, founder of Moss Wellness. Vitamin B12 anemia can cause coldness, numbness, and low energy, she says. Like iron, most B12-rich foods are animal products, so vegetarians might have a tough time getting enough. Vitamin B12 is found in eggs, yogurt, and cheese. Vegans can sprinkle nutritional yeast—a cheesy-tasting powder—on popcorn or baked potatoes.

11 Silent Signs You’re Not Getting Enough Vitamin B12 in Your Diet

You have a thyroid condition

When your body doesn’t produce enough thyroid hormone to regulate your metabolism, you could end up feeling cold all the time, says Margarita Rohr, MD, internal medicine specialist at New York University Langone Medical Center. If you’re suffering from other thyroid disease symptoms such as hair loss or constipation, go to a doctor for a blood test for hypothyroidism, she says.

Could you be suffering from a hidden thyroid problem?

You have low body weight

Being underweight could mean you’re always cold for two reasons, Tucci says. Fat works as an insulator, so having less fat might mean you can’t hold heat well. Plus, cutting calories can slow your metabolism, giving your body less energy to heat itself. “Your body is smart and doesn’t want to use energy if it’s worried that energy is scarce,” Tucci says. If you’re trying to gain weight, Tucci recommends stocking up on calorie-dense foods with good fats, such as nut butter, full-fat Greek yogurt, and dried fruit.

This is the exact age when your metabolism slows down – and what you can do about it.

You skip out on sleep

Although research on sleep and feeling cold is mixed, chronic fatigue can slow down your metabolism, leaving you feeling chilly during the day, Moss says. Plus, your body temperature fluctuates at night, and your body gets used to that cycle, Rohr adds. If you’re staying up later than usual, your core body temperature might drop during the same time it would if you were asleep.

This crazy method might be the secret to better sleep.

You’re dehydrated

When your body doesn’t have enough water, it can’t circulate blood as effectively, Tucci says. Water also holds heat heat, meaning dehydration could leave your body without H2O’s temperature-retaining benefits. To keep yourself hydrated, aim to drink half your weight in ounces of water, she recommends. For example, if you weigh 150 pounds, try and sip 75 ounces throughout the day.

You could be experiencing diabetes complications

Diabetics can develop peripheral neuropathy, which damages nerves in charge of the senses. This diabetes complication means you may feel always cold or feel pain or heat seemingly without reason, Rohr says. “It may not be physical, but just the sensation of being cold,” she says. “It’s just an error in the message sent to the brain from the feet or hands.”

These 12 signs could mean you’re borderline diabetic.

You don’t eat enough fat

There’s a reason you crave warm, hearty foods in the winter. “Fat helps us feel satiated and helps us feel warmer,” Moss says. Low-fat diets that replace healthy foods like avocado, nuts, and seeds with cooling foods such as fruits and juices might leave you feeling cold, she says.

You have Raynaud’s

A small percentage of the population suffers from Raynaud’s, which causes spasms in arteries in the hands, feet, and face, Rohr says. “When exposed to cold, the spasm makes circulation to those areas worse, and they tend to feel colder,” she says.

You have poor circulation

If your extremities are cold but can’t be linked to a chronic condition, you might just have naturally poor circulation and feel always cold. Moss recommends exercising regularly and trying acupuncture to bring feeling back to your hands and feet.

Your skin can reveal a lot about your health. Find out what your body’s trying to tell you.

You don’t have enough muscle

Muscle mass produces heat, keeping the rest of your body warm, Rohr says. Make sure to stay active and keep up a good exercise routine, she says.

Do these 7 exercises to build muscle.

You’re a woman

Even though women’s core temperatures tend to be about 0.4 degrees Fahrenheit warmer than men’s, their hands are almost 3 degrees colder on average, a University of Utah study found. “It’s not a huge difference, but it might be why women have the sensation of feeling colder,” Rohr says.

Why women need to worry about heart disease even more than men do.

Originally published as 12 Medical Reasons You’re Always Cold on ReadersDigest.com.


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