* Compression of nerves: Sitting or standing for long periods can compress nerves in the legs and feet, leading to numbness.
* Diabetes: High blood sugar levels can damage nerves, causing numbness in the extremities.
* Vitamin deficiencies: A lack of vitamins like B12 can also lead to nerve damage and numbness.
* Other medical conditions: Certain medical conditions like multiple sclerosis and spinal stenosis can cause numbness in the legs and feet.
If you are experiencing "kaal maravippu," it is important to consult a doctor to determine the underlying cause and receive appropriate treatment.