BIOLOGY | MEDICAL | HEALTH on Instagram: "You should not bite your nails because it transfers germs from your fingers to your mouth, causing illness, and can lead to infections, skin damage, dental problems like chipped teeth and jaw pain, and abnormal nail growth. To stop, you can try behavioral strategies like using bitter nail polish, replacing the habit with fidgeting, using physical barriers like gloves, or seeking professional help for underlying anxiety or compulsive behaviors. Health Ris