Bite nails

Top 5 in Top 10 bad habits that affect your health.

Biting nails is very conspicuous habit in many people. According to Dr. Adam Friedman at George Washington University of Medicine, biting nails can directly put bacteria from hand into the oral cavity, or bacteria on the skin, into the skin. Here, they can proliferate the infection around the nail folds or deep into the fingers. Not to mention if the hand is scratched, bacteria can enter the blood to cause sepsis, potentially life-threatening.