Rakesh Yadav

Drug addiction, also known as substance use disorder, refers to a chronic and relapsing condition characterized by the compulsive use of drugs despite negative consequences. It is a complex health issue that involves both physical and psychological dependence on a substance. Drug addiction can have severe effects on an individual's health, relationships, and overall well-being.

Causes of Drug Addiction:

1. Biological Factors: Genetic predisposition and variations in brain chemistry can make...

Heart disease refers to a range of conditions that affect the heart and its functioning. Here are some common types of heart diseases:

1. Coronary Artery Disease (CAD): CAD is the most prevalent type of heart disease. It occurs when the coronary arteries that supply blood to the heart become narrowed or blocked due to the buildup of plaque. This can lead to chest pain (angina), heart attacks, and other serious complications.

2. Hypertension (High Blood Pressure): High blood pressure occurs when...

Fish ponds are artificial bodies of water designed and constructed for the purpose of fish farming, also known as aquaculture. There are several types of fish ponds, each with its own characteristics and suitability for different species and farming methods. Here are some common types:

1. Earthen Ponds: Earthen ponds are the most basic and widely used type of fish ponds. They are constructed by excavating a depression in the ground and lining it with clay or synthetic liners to prevent water...

Organ transplantation is a surgical procedure in which a failing or damaged organ is replaced with a healthy organ from a donor. It is typically performed when other medical interventions have failed or are insufficient to restore the organ's function. Organ transplantation offers hope for patients with end-stage organ failure and can significantly improve their quality of life and survival.

There are several types of organ transplantation:

1. Kidney Transplantation: Kidney transplantation is...

Causative Agent: Cholera is caused by the bacterium Vibrio cholerae, specifically the serogroups O1 and O139. These bacteria produce toxins that lead to the characteristic symptoms of cholera.

Mode of Transmission: Cholera is primarily transmitted through the ingestion of contaminated food or water. The bacterium can survive in freshwater and marine environments, and it can be present in fecal matter of infected individuals. Common modes of transmission include consuming contaminated water,...

Tuberculosis (TB) is an infectious disease caused by the bacterium Mycobacterium tuberculosis. Here are the details regarding the causative agent, mode of transmission, symptoms, and control measures of tuberculosis in the community:

Causative Agent:

The causative agent of tuberculosis is the bacterium Mycobacterium tuberculosis. It primarily affects the lungs but can also impact other parts of the body, such as the kidneys, spine, and brain.

Mode of Transmission:

Tuberculosis is primarily...

In photosynthesis, the source of oxygen is indeed water, but carbon dioxide (CO2) also plays a crucial role, the process and clarify the relationship between water and carbon dioxide in photosynthesis.

Photosynthesis is the biochemical process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose. It occurs in the chloroplasts of plant cells, specifically in the thylakoid membranes.

During the light-dependent reactions of...