Switching your pillow case can help to prevent hair loss. Satin or silk pillowcases are though to help prevent hair loss. Sleeping with a cotton or flannel pillow case can cause friction to your head which can cause damage to the hair follicles and make the hair fall out.
Change your diet; it is important to include certain types of nutrients to help prevent hair loss. Make sure to consume plenty of vitamin A, vitamin E and vitamin C. Foods like avocados, oranges and carrots are great additions to your meals. You should also try to include omega-3 fatty acids in your diet as well.