Nail-biting habit can cause fatal heart issue: Expert
US-based Dr Christabel Akinola has warned that the seemingly harmless habit of nail-biting can have deadly consequences, which include a fatal heart issue. Bacteria from under the nails can enter the bloodstream and cause infective endocarditis, a serious infection of the heart's inner lining. Doctors advise avoiding nail-biting and maintaining proper nail hygiene to prevent severe complications.