Asthma symptoms vary in intensity and frequency from person to person. Asthma is a chronic lung disease that inflames and constricts the respiratory tract, whose causes are varied . It causes difficulty breathing periods (with a characteristic whistling sound), chest tightness, shortness of breath, and coughing. The cough is most common during the night and morning. Asthma affects people of all ages but occurs most frequently in childhood. About 30% of all asthma sufferers are children.

The airways are tubes that carry air in and out of the lungs. People who have asthma also have inflamed airways. This causes them to become irritated and very sensitive. For this reason they tend to react severely to certain substances that are breathed.

When the airways react, the muscles contract around. This causes the airflow to the lungs is reduced. Inflammation can worsen, making the airways become even closer. The cells of these pathways could produce more mucus than normal . This mucus is thick and sticky liquid that could be very heavy even worsen the problem by plugging the airways and contracted by asthma. Read the full story

Knee pain can be caused by a large number of factors that include the following; arthritis, tendinitis, bursitis, torn cartilage, torn ligament, strains or sprains, connective-tissues disorders (e.g., lupus) and knee injuries (dislocation of the kneecap).

Ultrasound therapy is an approved physical therapy treatment used by doctors, physical therapists and occupational therapists to help reduce and/or eliminate your knee pain by sending high frequency sound waves, which provide deep heat, to your affected knee tissues and stimulate the healing process.

Knee Joint Anatomy

Injuries to the knee joint are one of the most common of joint injuries, especially in sports. These injuries can persist for a long time if they are not treated properly.

The knee joint is the largest joint in your body and consists of many ligaments, muscles and tendons. Read the full story