Extra Weight, Sitting and "Cold in the Bones": Three Common Beliefs Tested

Some things people believe about bones are true, and some are not. Dr. Amr Elyamany answers three questions about weight, sitting and the weather.
Does extra weight affect the bones even without pain?
Yes. Every extra kilo of body weight sends roughly four kilos onto the knee, over a very small area. That leads to wear (osteoarthritis) and can raise the chance of tears and other injuries, even before you feel pain.
Does sitting a lot really ruin the back?
Yes. When you sit for long periods, your muscles stay in one position and gradually weaken. That leads to problems and extra pressure on the discs.
Does cold really enter the bone and make it hurt?
This is a myth. There is no such thing as cold entering the bone. But cold can affect the muscles and the nerves, and that gives you the feeling of pain.
Key takeaway: Weight and prolonged sitting genuinely burden your skeleton; the "cold in the bones" is really muscles and nerves reacting.
When to see a doctor
- Joint pain that grows with your weight
- Back pain after long sitting that does not settle
- Pain that is worse in cold weather and stays for weeks
Need advice about your own case? Book a consultation with Dr. Amr Elyamany in Dubai.
This article is for general education and does not replace an in-person medical examination. If you have symptoms, please consult a qualified doctor.