so what do you have to remember from this chapter?

Some usefull conclusion notes from the hair structure chapter:

• The dermal papilla is well supplied with minute blood vessels,
  and the blood passing through them nourishes this growing region.

So if you want you hair to grow you have to "feed" good this growing regions through blood vessels: eat food necessary for your hair and do some activities to increased blood flow to the hair folicles (like scalp massage, brushing your hair while you are bent over at the waste, standing on your head, will help to increase blood flow to the head.Watch out for dizziness!)

• When hair is wet the cortex swells and the edges of the cuticle scales tend to lift.

So don't comb or brush your wet hair, because you can easealy damage it. Be careful with your wet hair!

• Chemical treatments of hair such as perming and bleaching can alter the cortex after repeated damage, and change the hair's elasticity. The cuticle can also be damaged in the same way by too much blow drying, curling irons that are too hot, and the effects of wind and sun. The hair becomes increasingly porous, and water can then pass in and out of the cortex. Over-porous hair is dry, and tends to develop split ends.At least 17% of humidity is required by the hair fibers to maintain a healthy appearance.

So you have to avoid perming, bleaching, curling irons. If you use a blow fryer, don't use it on your ends! This is the most delicate bit of your hair as they are usually about 6 years old! They needed to be treated really well if you don't want to be cutting off damaged and split ends every month.

• The dermal papilla cells are The growing region of the hair is dermal papilla, which lies at the base of the hair bulb

So it"s a myth telling that hair will grow faster, when you cut the end. You will simply stop your split end dividing.

• The telogen phase is the time at which a new hair begins to grow from the hair follicle. As it grows upwards the old hair will be shed naturally or may be pulled out, which happens easily and painlessly with telogen hairs.

So don't worry, if you loose 70-80 hairs per day. It's natural phase of the hair cycle, which means that instead of sheded hair the new one grow from the same follicle.

• Many alcoholics have poor hair growth or even hair loss because their way of life tends to lead to malnutrition. So too does starvation: people who go on a crash diet may start to lose their hair some six to ten weeks later. Treatment of cancer with drugs also influence the hair growth. It may even cause apparent complete hair loss. Experiments have established that there is also the link between the immune system and hair growth cycle. Significant hair loss can also be caused by severe psycho emotional stress.

So eat plenty of healthy food, stay away from drugs and alcohol and have nice dreams!