Hypothyroidism
Hypothyroidism changes when the thyroid gland is unable to produce enough hormones to meet the needs of the body. Symptoms include lightness, dryness, and dryness. , And fear, in addition to fatigue, swelling of the face, and gain weight, and constipation, and depression.
Malnutrition
Malnutrition, the nature of the diet affects the skin, intestines, hair dryness, dehydration, fragility, and essential nutrients for hair: protein, zinc, vitamin E, iron, and omega-3 fatty acids, Spinach, eggs, rapeseed, avocado and oysters. Chemical treatments can affect some unexpected side effects on hair. These include: coloring, bleaching, and curling, affecting the composition of hair, for example, The hair layers do not close them leading to Li changed the texture of hair.
Thermal damage
Environmental factors cause damage to the health and appearance of hair, and the exposure of hair to heat is one of the most important reasons for hair dryness and fear, in addition to the devices used in the work of layoffs affect the moisture of hair, which affects the pores of hair, and break, so be careful when using a hairdryer , Or iron hair, or crease regularly and not over-used.
pharmaceutical
Some drugs affect hair, for example: painkillers, beta blockers, depression drugs, and acne treatment medicines, as it can interfere with hair formation, leading to hair loss.
Aging
The sebaceous glands decrease as they age, and their secretion of sebum decreases in the scalp, affecting the texture and roughness of the hair.