If a lightning strike is a sufficient distance from the observer, sound from the strike will not be heard. These silent bolts are called heat lightning. Lightning bolts produce thunder, but the thunder sound does not travel all the way to the observer if the observer is too far away. The movement of sound in the atmosphere depends on the atmospheric properties of the air such as temperature and density.
Collagen vascular diseases are autoimmune diseases that affect connective tissues, and occur when the bodyâs immune system attacks its own tissues and organs. Lupus is often characterized by a facial rash on both cheeks. Lupus patients may experience fatigue, joint pain, skin lesions and shortness of breath.
Collagen Helps Heal Your Gut. It turns out that patients with inflammatory bowel disease have lowered serum levels of collagen in their bodies . Considering that collagen helps repair the tissues along the digestive tract, it makes sense that low collagen levels would cause irritation of a weak, collagen-deficient gut lining. Collagen Eases Joint Pain. When weâre young, a healthy amount of collagen sits between our joints, providing lubrication for easy movement.