Older adults' immune systems naturally weaken with age, making them more susceptible to COVID-19, influenza (flu) and RSV. Here's what you need to know about these respiratory viruses and why protecting yourself with recommended vaccines is important to your health. ...
When cancer cells spread to the tissue layers covering the brain and spinal cord (the leptomeninges). Lung oedema Also known as pulmonary oedema is a condition caused by excess fluid in the lungs. This fluid collects in the alveoli compromising function and making it difficult to breathe. Midli...
The situation is still considered safe in younger and healthy individuals as their immune systems could differentiate and counter-attack the viruses, curing them. Nonetheless, in elders and individuals with several chronic diseases, most of their protective cells are dead, hence their immune system ...
Unlike a heart attack, which is caused by a blocked artery, cardiac arrest results in the complete failure of the heart’s pumping function. The most effective immediate response is CPR and the use of an Automated External Defibrillator (AED) to restore a normal heartbeat. Cardiac arrest can ...
When cancer cells spread to the tissue layers covering the brain and spinal cord (the leptomeninges). Lung oedema Also known as pulmonary oedema is a condition caused by excess fluid in the lungs. This fluid collects in the alveoli compromising function and making it difficult to breathe. Midli...
Cancer has not spread outside the breast. IB Small clusters of breast cancer cells larger than 0.2 mm but not larger than 2 mm are found in the lymph nodes Either no tumor is found in the breast or the tumor is 2 cm or smaller. ...
[6]. From an evolutionary perspective, the transformation of normal cells into malignant cells that will form a cancer is equivalent to a speciation event inside the body [7,8], preceded by a set of mutations that allow normal cells to acquire self-defined fitness functions and on which ...
Explain how the abnormal cell division of cancerous cells escapes normal cell cycle controls. How do mesodermal cells invaginate in amphibians? How do electrons move in a battery? Are cells made of atoms? Why does the plasma membrane form a bilayer?
Type 1 diabetes mellitus is believed to result from destruction of the insulin-producing β-cells in pancreatic islets that is mediated by autoimmune mechanisms. The classic view is that autoreactive T cells mistakenly destroy healthy (‘innocent’) β-cells. We propose an alternative view in whic...
During a yearly physical, a doctor will check your blood pressure and order blood tests that can check for abnormalities with glucose, blood cholesterol, liver function, and blood cells. They can also listen to your heart and lungs, perform cancer screenings and an abdominal exam, and order ...