Constantly cold when it's absolutely boiling in the house

My DF is 94 and pretty active still but feels the cold terribly, normally has layers on plus often a heater too. He's on 6 different meds so I wouldn't be surprised if it visit a side effect of one of those.

My husband was diagnosed of Parkinson’s Disease a couple of years ago, he had severe fatigue, difficulty with mobility and sleeping. He was placed on Sinemet 3 times daily, which helped but only for a short while. So we decided to try alternative treatment and began on PD-5 protocol , It has made tremendous difference for my husband, he had improved walking balance, muscle strength and he is now very active. His Parkinson’s is totally under control, we got the treatment from binehealthcenter. com. This treatment is a breakthrough for PWP!

My dad (a usually very active 75 year old, running a sub-35 minute Parkrun) experienced this a few months ago. Absolutely freezing even in 30C, multiple layers, several showers a day to try warming up. Also total exhaustion, not able to run, not wanting to do anything. Turns out he had anaemia. 3 months of iron tablets and a multivitamin and he's back to his old self almost. Not quite back to running at Parkrun, but back to volunteering. So I'd talk to your dad about going to the GP - his sedentary-ness might be related.

Is he on blood thinners due to his heart?

My dad has felt the cold since going on these after his heart attack. He layers a vest, tshirt, shirt and a proper wool jumper nowadays which helps. He is good at getting out every day for a walk (has a big dog). The house is always boiling though.

Also simply lack of exercise. Like when you’re hiking across the hills feeling comfortably warm, sit down to have lunch, and when you get up you feel really chilly.

Or working on your computer all afternoon compared with giving the house a deep clean

Could be anaemic? Or just low iron. Or maybe vitamin D, or B12. I’d get a full run down of his blood.

Peri menopause wont apply to him of course but Ive noticed in myself now in peri that I cant regulate temperature, either hot or cold, cant get comfortabel and then I think my thyroid is low and spent most of last year freezing cold, wearing jumpers and jackets when everyone else was sweltering in t shirts and shorts.

Yes it can be a medical thing.

The part of the brain/nervous system that controls body temperature is known as the autonomic nervous system.

It's common for various medical conditions to impact it so that the body is not good at regulating the core temperature anymore.

Previous posters have mentioned thyroid issues; any kind of brain issues - dementia, Parkinson's, neurological issues can also result in this being a problem.

This is common in elderly or ill people.

I am disabled and have restricted mobility and have this.

I would recommend:

Electric blankets for the bed overnight - you can get singles that go in one side.

Heated throws that he can sit on or under.

I also in the winter wear thermal socks, tracksuit bottoms and usually t shirt, thin fleece, oodie and body warmer.

Basically heat the person not the house.

Sometimes dementia or parkinsons sufferers say they're really cold. Or my auntie is the other way and claims it's too hot and refuses the heating on in winter!
It's bound to be partly his lack of movement. Are there any kind of physio exercises he could do sitting down? I guess he sounds like he'd refuse anything like that.
Could he need more vitamins and minerals? Magnesium, iron, folate, b vits? If you got him the tablets would be take them?
I used to be really cold when I was having malnutriton. Does he eat OK?

OP, how many bedrooms / reception rooms do they have?

Could you put thermostatic valves on the radiators in each room? Then your mother could sleep / spend her time in rooms with the radiator on low or off, and your father could sleep / spend his time in overheated rooms.

That would at least make things more comfortable for your mother.

I'm on statins and no colder than normal.

Is your Dad particularly overweight or very thin?

Can he get an electric blanket. There are some that you can only heat one side. And use a hot water bottle. Fleece pajamas and thick cotton or wool socks in bed.
A long sleeved thermal top under the PJs.
Thermal long johns under the PJs.

If on statins that also has same effect - DH is, and is always cold in bed while I am sweltering

Apparently some heart medicines can make people feel the cold

He has limited mobility, no matter the cause, why are you being so pedantic, its obvious what OP means

If it's overnight when he's is bed why don't they get a heated under blanket which has dual controls so he can adjust the settings for his preference on his side of the bed and your mum can leave her side of the bed off?

This happened to my Dad, as his Dementia progressed & the disease destroyed the bit of the brain that controls core temperature, but he was freezing to touch, regardless of hot house temperatures.

It can also be a symptom of alzheimer's. My mum has the thermostat at 28 and frequently calls out British Gas because " thevheating isn't working because the house isn't heating up". When I visit I am sweating in a t shirt, have an insulated bottle of iced water waiting in the car and the radiators are hot to touch.

so he doesn’t have limited mobility.

He is sedentary

There’s a difference

My dad is the same,his house is tropical. We have to wear t shirts on winter as it's so warm. If you're not up and moving around you won't get warm. Pretty normal for older folks to keep the heating cranked up.

Its fairly clear isnt it, he doesnt get up and move around much but is able to if he wanted to I presume?

limited mobility “by choice”

what do you mean? 🫤