Biotin, often added to hair and nail products, seems to strengthen both. Less research exists to document the impact of various foods on hair and nail health than to illustrate the role of diet in healthy skin. But there are still a few foods to consider avoiding if you're concerned about brittle nails or thinning hair.
Addiction is defined as a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences.â  It is considered a brain disease because drugs change the brainâthey change its structure and how it works.. Volkow and H. Schelbert. Addiction is a lot like other diseases, such as heart disease. Both disrupt the normal, healthy functioning of the underlying organ, have serious harmful consequences, and are preventable and treatable, but if left untreated, can last a lifetime.
Addiction is Habitual psychological or physiologic dependence on a substance or practice that is beyond voluntary control. Withdrawal has many meanings, one of which is A psychological and/or physical syndrome caused by the abrupt cessation of the use of a drug in an habituated person. Addiction-there is a psychological/physical component; the person is unable to control the aspects of the addiction without help because of the mental or physical conditions involved. 2  Habit-it is done by choice.