Is combing your hair a nightmare for you? Does the sight of hair in your comb frighten you? Our experts give you foods for strong and healthy hair. Firstly you need to get your basics about hair growth right. The average scalp contains about 100000 to 150000 hair. The normal hair life cycle lasts for 2 to 3 years. At any given point of time about 90% of the hair on your scalp is growing and about 10% of the hair is in a resting phase. After 2-3 months the resting hair is shed and new hair starts to grow