Water that is too hot causes the sebaceous glands to be over-active which in turn creates an oily scalp, dry hair ends, flat lifeless hair, and can promote dandruff and psoriasis. Also, hot water on the face causes your pores to open which results in loss of elasticity and moisture (oily or dry skin).
Solution? Take your showers in water that is at a comfortable heat level.
Shampoo has astringents that open the cuticle of the hair, which in turn adds to hair dryness and tangles.
Solution? Apply conditioner to dry hair tips before shampooing which will close the cuticle of the hair, and help to balance the pH of the hair and reduce dryness and tangles.