In winter, holding a cat can cause static electricity, so it's necessary to increase the air humidity.
Dry air is the primary cause of static electricity. Generally, static electricity is easily generated when humidity is below 35%. Therefore, we can use a humidifier to prevent the room air from drying out and keep the humidity above 50%. If you don't have a humidifier, you can hang damp towels in the room. Note that humidifiers can get very hot after prolonged use, so please keep them away from cats. 
In winter, if you experience static electricity from holding a cat, you can apply hand cream.
Besides dry air, dry hands can also cause static electricity buildup when petting cats. Hand cream is a common and effective way to combat static electricity in autumn and winter. Those with dry skin should apply extra hand cream to keep their skin moisturized. If you're worried about hand cream harming your cat, washing your hands is also an effective way to release static electricity.
In winter, static electricity can cause your cat to become sensitive to air when you hold it, so you need to keep its fur moisturized.
When a cat's fur is very dry, static electricity is easily generated when it's rubbed. Therefore, owners can wipe their cat's fur several times a day with a damp towel specifically designed for cats to prevent dryness and static electricity. In addition, if a cat's fur is dry and static electricity accumulates, it will easily attract dust from the air. When the cat grooms itself, it will lick this dust into its body.
In winter, there's static electricity when holding a cat, so you need to increase the contact area.
Pet owners' down jackets, sweaters, and other clothing easily generate static electricity. When petting the cat, this static electricity is naturally transferred to the cat. Therefore, before petting the cat, pet owners can place their hands on a wall to discharge the static electricity, which will greatly reduce the amount of static electricity generated. Also, try not to use your fingertips when touching the cat, as most static electricity is generated by fingertip contact; use your palm instead.
