Kyphosis.
Kyphosis is an abnormal forward rounding (more than 50 degrees of curvature) of the spine. In the upper (thoracic) back, kyphosis is commonly due to osteoporotic compression fractures. It can also occur in the lower (lumbar) spine.
B. At bedtime
C. After breakfast
D. After lunch
B. Antigens
C. Microorganisms
D. Antibiotics
the Human Genome Project
nanobots
biotechnology
Legal and illegal drugs refer to substances that are either permitted or prohibited by law. The distinction between these two categories is based on government regulations and societal norms. Here's a brief overview along with an example of each:
Legal Drugs:
Legal drugs are substances that are permitted for use, possession, and distribution under specific regulations and guidelines set by governments. These drugs are often subject to quality control, labeling, and other safety measures. Legal drugs can include both prescription and over-the-counter medications, as well as substances like alcohol and tobacco.
Example: Alcohol
Alcohol is a legal drug that is widely consumed in many parts of the world. It is used recreationally and is also a common ingredient in various social and cultural events. However, its misuse can lead to health issues and impaired judgment, which is why it is regulated and restricted to certain age limits in many places.
Illegal Drugs:
Illegal drugs are substances that are prohibited by law due to their potential for harm, addiction, and negative societal impacts. The possession, distribution, and use of illegal drugs are generally criminal offenses. These substances are often associated with serious health risks and criminal activities.
Example: Heroin
Heroin is an illegal drug that belongs to the opioid class. It is highly addictive and has severe health consequences, including overdose and death. Due to its dangerous nature and potential for abuse, it is classified as a controlled substance in most countries, making its production, distribution, and possession illegal.
It's important to note that the legality of certain drugs can vary from one country or jurisdiction to another. Additionally, the classification of drugs as legal or illegal can change over time based on evolving scientific, medical, and societal understanding.