The of the major thing is heredity first of all leave him *The important thing to grow hair is food itself include GOOSEBERRY, GUAVA , LEMON,POTATO in your diet because they are rich in vitamin C *Next is EGG YOLK , LENTILS ,PEANUTS, MUSHROOMS , CARROTS , FISH ,LIVER , SPINACH these are rich in proteins since hairs are made of proteins *Clean your hair with shampoo once or twice a week excess cleaning causes dryness *Massage hair with oil (prefer olive or coconut oil) *Keep away from forceful shower *Don't comb your hair when it is wet ,so comb when it gets moderately dry *If you pull a handful of hairs together if you get 5 or more you are facing hair loss so better to consult a doctor *Avoid using heat blowers into hair because it will damage your scalpe