White blood cells attack and destroy them.

Explanation:

They flow through your bloodstream to fight viruses, bacteria, and other foreign invaders that threaten your health. When your body is in distress and a particular area is under attack, white blood cells rush in to help destroy the harmful substance and prevent illness. White blood cells are made in the bone marrow.

to depression, you can, according to experts and therapists, start a routine of your day, set goals for yourself, exercise, eat healthy foods (and sometimes treating yourself to sweets), and get enough sleep. people have often found it easier for them to find someone they trust dearly and sharing their feelings and emotions with. hope this ! : )