Cold hands and feet in a country that sits at 30°C most of the year usually means the aircon, thin socks, or simply not moving much. Sometimes it means something worth checking.
This article covers both, and one important restriction on using a heat pad on feet.
Never put a heat pad on numb feet
Starting with the rule that matters most. If you have diabetes, or any numbness, tingling or burning in your feet, don’t use a heat pad, hot water bottle or heat patch on them. The nerves that would warn you the heat is too much may not be working, and reduced circulation means a burn heals slowly.
This is one of the most common causes of serious foot burns. Warm socks instead. See heating pads and diabetes, and the wider list in who should not use a heating pad.
Why hands and feet go cold first
When your body senses cold, it narrows the blood vessels in your hands and feet to keep warm blood around the organs that matter.
Fingers and toes are furthest from the heart and have the most surface area for their size, so they lose heat fastest and get the least blood.
That’s normal. Warming your core, with a jumper or a hot drink, does more for cold hands than rubbing the hands themselves. Older people feel this more: a heat pad for parents who always feel cold.
Safe ways to warm up
- Move. Two minutes of walking or a set of stairs warms the extremities from the inside. Best option, and free.
- Warm the core, not the parts. A layer over your torso, something around your neck. For whole-body warmth in bed, see an electric blanket vs a heat pad.
- Socks and closed shoes in a cold office. Feet on a cold tile floor lose heat constantly.
- Warm drinks through the day.
- Hands on a heat pad is fine if sensation is normal: cover on, lowest setting, 10 minutes. If the hands are stiff as well as cold, see hand arthritis morning stiffness.
- Move away from the aircon vent, or redirect it. See freezing in the office aircon.
Avoid: soaking cold feet in hot water (test with your elbow, and never hot), sitting with feet against a heater for long periods, or sleeping with anything warm against them.
When it isn’t just the aircon
| What you notice | Worth checking for |
|---|---|
| Fingers or toes turn white, then blue, then red and throb as they warm | Raynaud’s |
| Cold all the time plus tiredness, weight gain, dry skin, constipation | Underactive thyroid |
| Cold, pale, with tiredness and breathlessness | Anaemia |
| Numbness, tingling or burning in the feet | Nerve problems, often diabetes-related |
| Calf pain when walking that stops when you rest; cold, hairless, shiny lower legs | Poor circulation in the arteries |
A GP visit and a blood test sort most of these out. Aching, prominent leg veins are a separate question: varicose veins and heat. Night cramps in the calves are another: calf cramps at night.
If it’s Raynaud’s
The colour change is the giveaway, and aircon or a cold drinks fridge is enough to trigger it here. Gentle warming helps; sudden strong heat doesn’t, and can be uncomfortable as the vessels reopen.
Keep gloves at your desk, warm the whole body rather than the fingers, avoid smoking, and see a doctor if attacks are frequent, if skin breaks down at the fingertips, or if it started later in life, which can occasionally point to an underlying condition.
See a doctor promptly if…
- A hand or foot is suddenly cold, pale and painful. A blocked artery is an emergency.
- You have a sore, ulcer or broken skin on a foot that isn’t healing
- Fingertips or toes develop sores or turn dark
- New numbness or weakness in a hand or foot
The heat pad we use
We’ve supplied the Bremed BD7800 since 2010. It holds a steady temperature, covers a whole lower back and has a machine-washable cotton cover. Physiotherapy clinics in Singapore use it with their patients.
Clinically reviewed by: Nigel Chua (Hand Occupational Therapist) & Louise Yow (Physiotherapist). This article is general information, not a diagnosis. electricheatpad.com sells electric heat pads.
