Aging itself makes people feel colder, even when the room temperature hasn’t changed. After roughly age 60, the body becomes measurably worse at detecting cold, responding to it, and generating its own heat. Your dad’s constant chill is likely rooted in several overlapping biological shifts, but certain medical conditions and medications can make it worse. Understanding which factors are at play helps you know when to simply turn up the thermostat and when to bring it up with his doctor.
The Body Gets Worse at Fighting Cold With Age
When a younger person walks into a cold room, their body launches a coordinated defense: blood vessels near the skin tighten to keep warm blood closer to the core, muscles begin low-level shivering to generate heat, and metabolism ramps up. In older adults, every step of that chain weakens. The blood vessels in the skin don’t constrict as sharply, letting warmth escape to the surface. The nervous system signals that trigger this constriction are blunted at multiple points, from the brain’s outgoing signals to the blood vessels’ ability to respond to those signals.1PubMed Central. Sympathetic control of reflex cutaneous vasoconstriction in human aging The result is that even healthy older adults struggle to keep their core temperature stable during mild cold exposure that a younger person would barely notice.2PubMed Central. Aging and the control of human skin blood flow
On top of that, older people simply don’t feel cold as early or as intensely as younger people do. Their skin’s thermal sensors become less sensitive, so the brain gets a muted signal about dropping temperature. This means your dad may not register discomfort quickly enough to grab a sweater or move to a warmer spot, which lets his body cool down further before he takes action.3PubMed. Effect of cold exposure on older humans Paradoxically, this dulled perception also means that when he does complain of being cold, his body temperature may have already dropped more than you’d expect.
Less Muscle Means Less Heat
Muscle is the body’s furnace. Even at rest, muscle tissue burns calories and generates heat. Starting around age 30, people gradually lose muscle mass, a process that accelerates after 60. By age 70, basal heat production has dropped by roughly 20 percent compared to age 30, largely because of this muscle loss.4The Journals of Gerontology: Series A. Functional Consequences of Sarcopenia: Effects on Thermoregulation That’s a significant decline in the body’s resting furnace output.
Shivering, the body’s emergency heat-generation response, also depends heavily on muscle. With less muscle available, the shivering response is weaker and produces less warmth. Meanwhile, brown fat, a specialized tissue that burns energy specifically to produce heat, also declines with age. Reduced activity of both brown fat and muscle-based heat generation are closely linked to lower metabolic rate and further muscle wasting in older adults, creating a cycle where being cold and losing muscle reinforce each other.5PubMed Central. Sarcopenia and body temperature—the significance of interorgan metabolic networks in skeletal muscle atrophy
If your dad has become more sedentary over the years, this effect is compounded. Inactivity speeds up muscle loss and reduces the metabolic boost that comes from regular movement. Even light activity like short daily walks can help preserve some of the muscle mass that keeps the body’s thermostat working.
Thyroid Problems and Other Medical Conditions
Hypothyroidism, where the thyroid gland doesn’t produce enough hormone, is one of the most common medical causes of cold intolerance, and it becomes more prevalent with age. Thyroid hormones regulate metabolism throughout the body, including the heat-generating response to cold. In people with hypothyroidism, cold-induced heat production is dramatically reduced. Research shows that restoring normal thyroid levels roughly doubles the body’s heat-generating response to cold temperatures.6PubMed Central. Resolution of Hypothyroidism Restores Cold-Induced Thermogenesis in Humans If your dad hasn’t had his thyroid checked recently, this is one of the first things worth asking his doctor about. It’s treatable with a daily pill, and the improvement in cold tolerance can be substantial.
Diabetes is another condition that contributes to feeling cold, through a different mechanism. Long-standing diabetes often damages the small nerves that relay temperature information from the extremities to the brain. In elderly patients with type 2 diabetes, temperature discrimination, the ability to tell hot from cold through the skin, is one of the functions most frequently impaired.7PubMed. Diabetic neuropathy in elderly Type 2 diabetic patients: effects of insulin treatment This nerve damage can make feet and hands feel persistently cold or numb, and it also creates safety risks we’ll get to later.
Peripheral arterial disease, where narrowed arteries reduce blood flow to the legs and feet, is yet another contributor. It’s common in older adults, particularly those who smoke or have high blood pressure and high cholesterol. When less warm blood reaches the extremities, hands and feet feel cold even in a warm room. Anemia, heart failure, and kidney disease can all make cold intolerance worse as well, because each reduces the body’s ability to circulate warm, oxygenated blood effectively.
Medications That Make It Worse
If your dad takes beta-blockers for blood pressure or heart conditions, those drugs may be partly responsible for his cold hands and feet. Beta-blockers slow the heart rate and reduce the force of the heartbeat, which is the point, but they also reduce blood flow to the extremities. In one clinical comparison, half of the patients taking beta-blockers reported cold hands and feet, compared to fewer than 5 percent of patients on a different blood pressure drug.8PubMed Central. Raynaud’s phenomenon as side effect of beta-blockers in hypertension Among beta-blockers, older formulations like propranolol tend to cause more cold-extremity problems than newer, more selective versions.
Beta-blockers aren’t the only culprits. Some calcium channel blockers, certain antidepressants, and some Parkinson’s medications can also affect circulation or the nervous system in ways that increase cold sensitivity. If you notice your dad’s cold intolerance got worse after starting a new medication, it’s worth flagging for his doctor. Switching to an alternative within the same drug class can sometimes make a real difference without compromising the medical benefit.
Vitamin B12 and Nutritional Gaps
Older adults are at higher risk of vitamin B12 deficiency because the stomach produces less of the acid needed to absorb it from food. B12 deficiency can damage peripheral nerves in ways that affect temperature sensation. In one documented case, B12 deficiency altered cold and warm perception thresholds in the upper limbs, and the changes reversed once levels were restored.9Clinical Neurophysiology Practice. Reversible cutaneous silent period abnormalities in vitamin B12 deficiency: A case report While that’s a single case report and the effects of B12 deficiency vary widely, it illustrates how nutritional gaps can contribute to the same nerve-related cold sensitivity seen in diabetes.
Iron deficiency, which causes anemia, is another nutritional factor. Without enough iron, the blood carries less oxygen, and the body prioritizes keeping the vital organs warm at the expense of the extremities. Many older adults eat less overall, and their diets tend to be less varied, making these deficiencies more likely. A simple blood panel can check for both B12 and iron levels.
Dehydration is an underappreciated contributor as well. Many older adults don’t drink enough fluids, partly because the sense of thirst fades with age. When blood volume drops from dehydration, circulation to the skin and extremities is reduced, which can worsen cold sensations. Dehydration in older adults is both common and often overlooked.10PubMed Central. Hydration Status in Older Adults: Current Knowledge and Future Challenges
Older Men May Be More Vulnerable Than Older Women
If you’re noticing this more with your dad than your mom, the research suggests that’s not a coincidence. In cold-exposure studies, older men showed greater drops in core temperature than either younger people or older women. Older women, despite sometimes feeling cold, appeared to mount a stronger early metabolic response that helped them stabilize their core temperature, while men’s core temperature continued to decline.11PubMed. Influences of age and gender on human thermoregulatory responses to cold exposures The protective role of body fat, which tends to be higher in women, provides some insulation, though it comes at a metabolic cost.
That said, the decline in thermal sensitivity itself, the ability to actually perceive temperature changes through the skin, seems to drop at a similar rate in both men and women as they age.12PubMed. Sex differences in age-related changes on peripheral warm and cold innocuous thermal sensitivity So both parents may underestimate how cold they are, but your dad’s body may be less equipped to compensate for it.
When Dementia Complicates Things
If your dad has cognitive decline or dementia, there’s an additional layer of difficulty. Research using infrared thermal imaging in residential care settings found that older residents with dementia showed pronounced “thermal blunting,” meaning their hands and feet could be objectively cold while they reported feeling perfectly comfortable. Some residents had skin temperatures low enough to appear as “thermal amputation” on imaging, with extremities so cold they barely registered, yet they said they felt fine.13PubMed Central. Thermal Sensation in Older People with and without Dementia Living in Residential Care: New Assessment Approaches to Thermal Comfort Using Infrared Thermography
This is the opposite of the “always cold” complaint, but it’s arguably more dangerous: a person who can’t tell they’re cold won’t ask for help. If your dad has dementia, you can’t rely on his self-reporting. Touching his hands and the back of his neck to check skin temperature, and keeping the room warm regardless of what he says he feels, becomes important. A room temperature of at least 68°F (20°C) is a common recommendation for older adults.
The Real Danger Is Hypothermia
Feeling cold is uncomfortable, but the serious risk is hypothermia, which happens when core body temperature drops below 95°F (35°C). Because older adults lose heat more easily and detect cold less readily, they can slip into mild hypothermia without recognizing it. The risk isn’t limited to being outdoors in winter; it can happen in a cool house over several hours, especially overnight. Hypothermia in older adults carries sobering mortality rates. Research on emergency department admissions shows that one-year mortality from hypothermia rises steeply with age, reaching roughly 45 percent in patients over 80.14PubMed Central. Incidences of underlying causes of hypothermia in older patients in the emergency department: a systematic review
Signs to watch for in your dad include confusion that seems worse than usual, slurred speech, drowsiness, and skin that looks pale or feels cold to the touch on the torso rather than just the hands and feet. If you notice those symptoms together, it’s a medical emergency. Don’t wait for him to say he feels cold, because by that point, the thermal-sensation blunting that comes with age means he may not feel it at all.
Practical Ways to Help
Layered clothing is more effective than one heavy garment because air trapped between layers acts as insulation. A warm hat matters more than people expect, since the head loses heat readily when uncovered indoors in a cool room. Warm socks and slippers help address the cold-feet problem that beta-blockers and circulation issues make worse.
Keep the house warm enough. Many older adults try to save on heating bills by keeping thermostats low, but the health costs of under-heating can be significant. At least 68°F (20°C) during the day and slightly warmer at night is a reasonable target. A programmable thermostat that prevents the house from dropping too low overnight is a good investment.
Warm drinks and meals help from the inside. A hot cup of tea raises core temperature modestly, and warm meals require the body to generate less metabolic heat from scratch. Encouraging your dad to eat adequately and stay hydrated addresses two underlying contributors at once.
Gentle exercise, even chair exercises or short walks, can make a meaningful difference. Movement generates immediate warmth and, over time, helps preserve the muscle mass that keeps basal metabolism higher. If your dad is able, resistance exercises like standing from a chair repeatedly or using light hand weights can be especially helpful for maintaining muscle.
Get a medical workup. A thyroid panel, complete blood count to check for anemia, B12 level, and blood glucose check can identify treatable causes. Reviewing his medication list with his doctor, with cold intolerance specifically in mind, is worthwhile. Many physicians don’t ask about cold sensitivity unless prompted.
Heating Devices and Burn Risk
Here is where good intentions can create real harm. The instinct to give your cold dad a hot water bottle, electric blanket, or heating pad is understandable, but older adults are disproportionately vulnerable to burns from these devices. Their skin is thinner, which means burns develop faster and at lower temperatures than in younger skin. An audit of hot water bottle burn injuries found that four out of seven contact-burn patients were over 80, and several had prolonged contact with the bottle against neuropathic skin from diabetes, resulting in deep burns they didn’t feel happening.15PubMed Central. Burn Injuries Caused by Hot Water Bottles: Audit and Loop Closure
Heating pads are a leading source of contact burns in older adults treated in emergency departments.16PubMed. Elderly patients discharged home from the emergency department with minor burns The combination of reduced sensation (from diabetes, neuropathy, or simply age-related nerve changes) and thinner skin makes it easy to sustain a burn without feeling pain.17Wounds. Burns Sustained From Body Heating Devices: An Integrative Review If your dad uses a heating pad or hot water bottle, keep it wrapped in a thick towel or cover, set it on a timer or auto-shutoff, and never let him fall asleep with it in direct contact with his skin. Better yet, consider alternatives like microwave-heated grain bags, which cool down on their own rather than maintaining a constant high temperature.
Electric blankets with auto-shutoff features are generally safer than heating pads because they warm a larger area at a lower temperature, but the same caution applies: check that he isn’t lying on creased or bunched sections, and replace any blanket with worn or cracked wiring. For someone with significant neuropathy, even electric blankets carry some risk, and warming the room itself is the safest approach.
When to Involve the Doctor
Cold intolerance in an older person is common enough that it’s easy to dismiss as “just getting old.” And in many cases, the age-related changes described above are the primary explanation. But there are red flags that should prompt a medical visit rather than just another blanket. Sudden onset of cold intolerance, rather than a gradual worsening over years, suggests something has changed medically, such as new-onset hypothyroidism or worsening anemia. Cold that’s sharply one-sided, with one foot or hand noticeably colder than the other, can point to a vascular blockage. Skin color changes in the fingers or toes, turning white or blue when cold, may indicate Raynaud’s phenomenon, which can be triggered by medications or occur on its own. Unintended weight loss alongside cold intolerance can signal nutritional deficiency or an underlying illness that needs investigation.
Even without red flags, it’s reasonable to ask the doctor for a targeted blood workup if your dad’s cold intolerance seems out of proportion. The treatable causes, thyroid dysfunction, anemia, B12 deficiency, medication side effects, are all straightforward to identify with basic lab work and a medication review. Sometimes the fix is as simple as adjusting a dose or adding a supplement, and the improvement in comfort and safety can be dramatic.