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Detailed explanation-1: -Nail biting, fearfulness, impatience, thumb sucking, restlessness are some common behavioral symptoms of anxiety. It can be caused due to the higher stress in a competition or in any other stressful life situations.

Detailed explanation-2: -Thumb sucking is a natural, instinctive behavior that provides comfort. Doctors call it a non-nutritive sucking habit . This is a group of soothing behaviors that also include the use of pacifiers or comfort blankets. Babies and children begin sucking their thumbs as a reflex, making them feel secure and safe.

Detailed explanation-3: -Causes of thumb sucking as an adult Adults who suck their thumbs may find that it reduces anxiety and stress, helping them to calm down. It’s possible that some adults who suck their thumbs experienced trauma during childhood and turned to the behavior to calm themselves down during that time.

Detailed explanation-4: -Body-focused repetitive behaviors like nail biting and picking may also be symptoms of obsessive-compulsive disorder (OCD). When you engage in these behaviors, you gain pleasure or relief, which then continues the cycle. Research also shows that nail tics (repetitive movements) may relieve tension.

Detailed explanation-5: -Alternatively, you can also cover your nails with tape or stickers or wear gloves to prevent biting. Replace the nail-biting habit with a good habit. When you feel like biting your nails, try playing with a stress ball or silly putty instead. This will help keep your hands busy and away from your mouth.