Smoking Articles

• Air Quality
  Air Pollution
  Pollution
  Environmental Science
  Environmental Issues
  Acid Rain
   
  

  Air pollution

  Air pollution is a broad term applied to any chemical, physical (particulate matter), or biological agent that modifies the natural characteristics of the atmosphere. The atmosphere is a complex, ... > more
• Pregnancy and Childbirth
  Infant's Health
  Birth Defects
  Sports Medicine
  Healthy Aging
  Attention Deficit Disorder
   

  Stillbirth

  A stillbirth occurs when a fetus, of mid-second trimester to full term gestational age, which has died in the womb or during labour or delivery, exits the maternal ... > more
• Stroke Prevention
  Heart Disease
  Elder Care
  Diseases and Conditions
  Hypertension
  Disability
   

  Stroke

  A stroke or cerebrovascular accident (CVA) occurs when the blood supply to a part of the brain is suddenly interrupted. In brain tissue, a reduction of blood flow, cerebral ischemia, leads to an ... > more
• Healthy Aging
  Attention Deficit Disorder
  Sports Science
  Sports Medicine
  Weapons Technology
  Physics
   
  

  Polonium

  Polonium is a chemical element in the periodic table that has the symbol Po and atomic number 84. A rare and highly radioactive metalloid, polonium is chemically similar to tellurium and bismuth, and ... > more
• Cervical Cancer
  STD
  Sexual Health
  Healthy Aging
  Women's Health
  Men's Health
   
  

  Human papillomavirus

  Papillomaviruses are a diverse group of DNA-based viruses that infect the skin and mucous membranes of humans and a variety of animals (replicating exclusively in keratinocytes). More than 100 ... > more
• Obesity
  Diet and Weight Loss
  Fitness
  Nutrition
  Triglycerides
  Diseases and Conditions
   

  Overweight

  The term overweight is generally used to indicate that a human (or other mammal) has more body fat than is typical or required for the normal functioning of the body. A healthy body normally requires ... > more
• Marijuana
  Controlled Substances
  Illegal Drugs
  Sports Medicine
  Endangered Plants
  Healthy Aging
   
  

  Cannabis

  Cannabis is believed to have originated in the mountainous regions just north of the Himalayas in India. It is also known as hemp, although this term usually refers to cannabis cultivated for ... > more
• Immune System
  Lymphoma
  Human Biology
  Diseases and Conditions
  Developmental Biology
  Lupus
   
  

  Immune system

  The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. (Though in a broad sense, almost every organ has a protective function - ... > more
• Lung Disease
  Infectious Diseases
  Pneumonia
  Diseases and Conditions
  Healthy Aging
  Attention Deficit Disorder
   
  

  Pneumonia

  Pneumonia is an illness of the lungs and respiratory system in which the alveoli (microscopic air-filled sacs of the lung responsible for absorbing oxygen from the atmosphere) become inflamed and ... > more
• Alcoholism
  Addiction
  Healthy Aging
  Attention Deficit Disorder
  Sports Medicine
  Birth Defects
   
  

  Alcoholism

  Alcoholism is the consumption of or preoccupation with alcoholic beverages to the extent that this behavior interferes with the alcoholic's normal personal, family, social, or work life. The chronic ... > more
• Dentistry
  Osteoporosis
  Headache Research
  Bone and Spine
  Neuropathy
  Cold and Flu
   
  

  Extraction (dental)

  A dental extraction is the removal of a tooth from the mouth. Extractions are performed for a wide variety of reasons. Tooth decay (properly known as dental caries) that has destroyed enough tooth ... > more
• Medical Technology
  Medical Imaging
  Physics
  Optics
  Today's Healthcare
  Healthy Aging
   

  Radiography

  Radiography is the creation of images by exposing a photographic film or other image receptor to X-rays. Since X-rays penetrate solid objects, but are weakened by them depending on the object's ... > more

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