According to experts , the pressure caused by holding in a sneeze can potentially lead to the rupturing of a brain aneurysm. This is a life-threatening injury that can lead to bleeding in the skull around the brain.
Cerebrospinal fluid (CSF) rhinorrhea is a condition where the fluid that surrounds the brain leaks into the nose and sinuses. Head trauma, surgery, or even birth defects can make a hole in the membranes that hold this fluid. It then leaks into your nose or ear, causing a watery, runny nose. CSF rhinorrhea is very rare.
The signals travel to the 'sneezing centre' in the lateral medulla of your brain. When they reach a critical threshold, it triggers a sneeze reflex. The reflex forces a sudden, deep intake of breath. At this point the chain reaction is unstoppable and a sneeze is inevitable.
Everyday activities like drinking coffee or blowing your nose can cause sudden spikes in blood pressure, new research shows. The spikes could, in turn, lead to broken blood vessels in the brain -- or even a stroke.
Chiari malformation (kee-AH-ree mal-for-MAY-shun) is a condition in which brain tissue extends into the spinal canal. It occurs when part of the skull is misshapen or smaller than is typical, pressing on the brain and forcing it downward.
In rare cases, it can spread to the brain. Normal sinuses are lined with a thin layer of mucus that traps dust, germs and other particles in the air. Tiny hair-like projections in the sinuses sweep the mucus (and whatever is trapped in it) towards openings that lead to the back of the throat.
Physical damage to the brain and other parts of the central nervous system can also kill or disable neurons. - Blows to the brain, or the damage caused by a stroke, can kill neurons outright or slowly starve them of the oxygen and nutrients they need to survive.
High consumption of refined sugars is known to destroy the ability of the brain and body to absorb proteins and nutrients. Poor nutrition will lead to malnourishment and brain disorders like poor memory, learning disorders, hyperactivity and depression.
The classic presentation of CSF leaks is the expression of clear, watery drainage from the nose. This occurs usually on one side; however if fluid drains into the back of the throat there may be a salty taste.
French fries, fried chicken, doughnuts, and other fried fare are not your friends when it comes to memory. A study of 18,080 people in The Journal of Nutritional Science found that a diet high in fried foods (and processed meats) is associated with lower cognitive scores in memory and learning.
But work by Fred “Rusty” Gage, PhD, president and a professor at the Salk Institute for Biological Studies and an adjunct professor at UC San Diego, and others found that new brain cells are continually produced in the hippocampus and subventricular zone, replenishing these brain regions throughout life.
Healthy whole grains like brown rice, whole grain bread, oatmeal and even popcorn contain fibres and vitamins that improve blood flow throughout the brain and help memory function. They also improve blood-sugar stability, which can curb study-interrupting cravings.
But without a ventilator to keep blood and oxygen moving, this beating would stop very quickly, usually in less than an hour, Greene-Chandos said. With just a ventilator, some biological processes — including kidney and gastric functions — can continue for about a week, Greene-Chandos said.
And finally… a bit of trivia: the world record for the loudest sneeze is held by a man in China called Yi Yang whose nose explodes at a level of 176 decibels ... for those who would like to know an Anton boom registers at 120 decibels.
When you sneeze, the intrathoracic pressure in your body momentarily increases. This will decrease the blood flow back to the heart. The heart compensates for this by changing its regular heart beat momentarily to adjust. However, the electrical activity of the heart does not stop during the sneeze.
One of the symptoms of the plague was coughing and sneezing, and it is believed that Pope Gregory I (Gregory the Great) suggested saying “God bless you” after a person sneezed in hopes that this prayer would protect them from an otherwise certain death. The expression may have also originated from superstition.
The sinuses are air-filled passages in the face. When fluid becomes trapped in the sinuses, bacteria can collect, and this may lead to infection. The presence of bacteria and excess mucus in the sinuses can lead to breath that smells like poop.
Scott Napper, a biochemistry professor at the University of Saskatchewan, theorizes that snot and boogers taste sweet so kids will want to eat them. It's the body's way of enticing kids to consume boogers as a way to boost their immune system.
Boogers often contain bacteria and viruses, and although nose picking is a common habit that does not usually cause health problems, eating boogers could expose the body to germs. Also, excessive nose picking can cause bleeding and inflammation in the nose.
Researchers from the University of Kansas Medical Center examined how drinking milk impacts the brain. The results, which were published in The American Journal of Clinical Nutrition, suggested that the beverage may be helpful for managing levels of antioxidants in the brain and maintaining cognitive function.