The research cannot be done as to whether these hairs can safely and effectively be transplanted onto a person's scalp yet. First, they cloning process will have to be completely perfected. Only then can the hair transplant trials begin. More research needs to be done to find out which hair cells can be used for hair cloning and then hair transplant procedures. For example, you need to make sure you get enough blood flow during the night. You can do this by sleeping on pillows to elevate your head. Your usual pillows can be used, or you can buy wedge-shaped pillows made for this purpose. On the other hand, you do not want too much blood flow. You should get plenty of rest after your hair transplant surgery. Previously, when hair plugs were used, doctors did the hair transplant surgeries much differently. They used an instrument called a trephine to cut circular grafts from 2mm to 5mm in diameter. These plugs were inserted into the balding area. Now, a multi-bladed knife can be used to cut long thin strips of donor tissue. It was agonizing for this group of young people because thinning, balding, and receding hairlines often started before they got out of their teens. Now the procedure is being opened to young men - but with restrictions. Because losing hair at such a young age is very traumatic, hair transplant doctors do not like to go along with the patients' snap decisions. Hair transplant surgery is surely less painful than it was in earlier times when larger sections of scalp were excised. This involved more cutting to take out the donor hair and more cutting to insert the donor hair into the recipient site. Hair transplant surgery was a very painful procedure in the past. When doctors do hair transplant surgery to replace eyebrows, they have to make sure that they put the hairs in so that they will point in the natural hair direction. For this, the surgeons use very fine gauge needles. They must also use this to help the hair to lie flat. Because the eyebrow hair is made of individual hairs, hair transplant surgery must involve creating those single units of hair.