Lose weight: Creating a calorie deficit that results in weight loss is hard work. Most recommendations say that to lose weight, you must exercise for at least an hour a day, five times a week. The type of exercise matters, too.
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia. hair shaft. the nongrowing portion of a hair that protrudes from the skin, that is, from the follicle. hair shaft. The keratinized portion of a hair that extends from a hair follicle beyond the surface of the epidermis.
It is the most inner layer of the hair shaft, though, itâs function is not absolutely clear yet. Sometimes this layer is even absent in some types of hair. Posted in Hair Info | Tags: cortex, cuticle, hair structure, layers of hair, medulla, melanin, pheomelanin, types of hair | 1 Comment Â»