"Hair Me Out On This One"

• Superstar strong safety Troy Polamalu's hair is insured for 1 million dollars!
• Most scalps contain 100,000-150,000 hair follicle
• Due to high levels of estrogen, the growth cycle of hair is slower in women than men
• 90% of hairs are growing while the other 10% are resting
• Hair is the second fastest growing tissue in the body
• Many drugs can cause hair loss.
• You would have to lose over 50% of your hair before anyone notices
• If the average man never shaved his beard it would grow to be over 30 feet long.
• Hair follicles are found in the epidermis of the skin
• A follicle is a stocking like structure that contain capillaries that help feed the cell
• A reason we have hair is for insulation
• Hair forms in a hair follicle the things we actually see are hair shafts which are hardened and keratinized cells.
• The more disulfide bonds hair has the curlier it is the least bonds the straighter the hair.
• There are two steps to getting a perm the first is a physical wrapping of the hair to shape the hair and then a chemical bath to break down the disulfide bonds.
• As people age the pigment cells in the hair deteriorate and causes the persons hair to grow back in a grayish tone.
• To find out more on why hair turns gray, click here
• Sebum is released by the sebacious glands, its purpose is to protect the skin and hair from drying out.
• An arrector pili muscle is a muscle that contracts and causes hairs to go into the skin and cause goosebumps.