Blood has a normal viscosity dependent on adequate hydration and the absence of any illness that could affect normal electrolyte balance in the body. As blood thickens, it becomes harder for blood...
If blood loss is extensive, a person's blood pressure will drop severely, causing the heart rate to increase, capillary reflex to slow, lightheadedness and the person becomes disoriented or confused...
Because when fear is triggered in the brain, chemicals such as adrenaline are released into the blood stream and because of the excess chemicals, you have a higher blood pressure than usual due to...