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.
Drug metabolites in your body travel to your hair follicle, which is the part of your scalp that generates and grows a hair strand. From the hair follicle, the drug metabolites are deposited into the center of the newly formed hair strand as it grows. The inner shaft of a hair strand is known as the cortex.