It is believed that going for frequent hair cut will make your hair grow fast. It is not true. Your hair grows half-inch every month, even if you do not cut your hair. During the summer hair grows a little faster and your hormones are also responsible for the growth of your hair. Having hair fall of 50-120 strands of hair is normal. Antibiotics, pregnancy are also responsible for hair fall. But, you do not need 2 worry your hair will grow back. Depression is a major reason for hair fall. Removing a strand of grey hair does not increase the number of grey hair. But, removing grey hair is not good for you might end up having an infection.